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WorldCat

April 02, 2023

For information on using WorldCat links in Wikipedia articles, see Template:OCLC.

WorldCat is a union catalog that itemizes the collections of tens of thousands of institutions (mostly libraries), in many countries, that are current or past members of the OCLC global cooperative.[3] It is operated by OCLC, Inc.[4] Many of the OCLC member libraries collectively maintain WorldCat's database, the world's largest bibliographic database.[5] The database includes other information sources in addition to member library collections.[6] OCLC makes WorldCat itself available free to libraries, but the catalog is the foundation for other subscription OCLC services (such as resource sharing and collection management). WorldCat is used by librarians for cataloging and research and by the general public.

WorldCat
Screenshot
WorldCat homepage as of June 2019
Type of site
Network of library content and services
Available in13 languages[1]
List of languages
  • Chinese (Simplified)
  • Chinese (Traditional)
  • Czech
  • Dutch
  • English
  • French
  • German
  • Italian
  • Korean
  • Japanese
  • Portuguese
  • Spanish
  • Thai
  • Urdu
OwnerOCLC
URLwww.worldcat.org
CommercialNo
RegistrationOptional, but some features require registration (such as writing reviews and making lists or bibliographies)
LaunchedJanuary 21, 1998; 25 years ago (1998-01-21) (date of registry of the new domain name; the database already existed since 1971)[2]
Current statusOnline
Content license
Copyright policy
OCLC number756372754

As of December 2021, WorldCat contained over 540 million bibliographic records in 483 languages, representing over 3 billion physical and digital library assets,[4] and the WorldCat persons dataset (mined from WorldCat) included over 100 million people.[7]

History

OCLC was founded in 1967 under the leadership of Fred Kilgour.[8] That same year, OCLC began to develop the union catalog technology that would later evolve into WorldCat; the first catalog records were added in 1971.[8][9]

In 2003, OCLC began the "Open WorldCat" pilot program, making abbreviated records from a subset of WorldCat available to partner web sites and booksellers, to increase the accessibility of its subscribing member libraries' collections.[10][11]

In October 2005, the OCLC technical staff began a wiki project, WikiD, allowing readers to add commentary and structured-field information associated with any WorldCat record.[12] WikiD was later phased out, although WorldCat later incorporated user-generated content in other ways.[13][14]

In 2006, it became possible for anyone to search WorldCat directly at its open website WorldCat.org,[15] not only through the subscription FirstSearch interface where it had been available on the web to subscribing libraries for more than a decade before.[16] Options for more sophisticated searches of WorldCat have remained available through the FirstSearch interface.[15]

In 2007, WorldCat Identities began providing pages for 20 million "identities", which are metadata about names—predominantly authors and persons who are the subjects of published titles.[17]

In 2017, OCLC's WorldCat Search API was integrated into the cite tool of Wikipedia's VisualEditor, allowing Wikipedia editors to cite sources from WorldCat easily.[18][19]

Beginning in 2017, OCLC and the Internet Archive have collaborated to make the Internet Archive's records of digitized books available in WorldCat.[20]

In May 2022, OCLC announced WorldCat Entities, a new infrastructure for library linked data.[21][22] Maintenance of WorldCat Identities was suspended and the service will be discontinued as it is being replaced by WorldCat Entities.[23]

In August 2022, OCLC launched a "redesigned and reimagined" WorldCat.org website with the stated goal "to offer greater accessibility to the collections".[24] The website now requires the use of JavaScript and is therefore no longer accessible for users of older web browsers or those that have JavaScript disabled for security reasons. The update also removed users' book reviews and replaced them with reviews from Amazon subsidiary GoodReads.[25]

System architecture

Local catalogs of many OCLC member libraries are intermittently synchronized with the WorldCat database.[26] WorldCat allows participating institutions to add direct links from WorldCat to their own local catalog entries for particular items, which enables the user to click through to the local catalog to quickly determine an item's real-time status (for example, whether or not it is checked out).[27]

In a small percentage of libraries,[28] the local catalog is also run by OCLC using an integrated library system called WorldCat Discovery and WorldShare Management Services.[29]

Library contributions to WorldCat are made via the Connexion computer program,[30] which was introduced in 2001; its predecessor, OCLC Passport, was phased out in May 2005.[31] Cataloging librarians may also use the WorldShare Record Manager[32] or WorldCat Metadata API[33] for similar purposes.[34]

See also

References

  1. ^ "Search for library items". WorldCat. OCLC. Retrieved March 29, 2017.
  2. ^ 1998 is the date of registry of the WorldCat.org domain; see: "WorldCat.org WHOIS, DNS, & Domain Info – DomainTools". WHOIS. Retrieved January 21, 2017. However, the union catalog that became WorldCat was started three decades earlier, and it was already available on the web to subscriber libraries at OCLC.org several years before WorldCat.org was a registered domain name; see: "OCLC.org WHOIS, DNS, & Domain Info – DomainTools". WHOIS. Retrieved June 26, 2019.
  3. ^ The 2012–2013 OCLC Annual Report noted that the number of "participating libraries (includes active and inactive symbols)" was 78,985: 2012–2013 OCLC Annual Report (Report). p. 5. OCLC 1226313226. Retrieved March 10, 2022.
  4. ^ a b "Inside WorldCat". www.oclc.org. OCLC. Retrieved June 19, 2021.
  5. ^ Oswald, Godfrey (2017). "Largest unified international library catalog". Library world records (3rd ed.). Jefferson, NC: McFarland & Company. p. 291. ISBN 9781476667775. OCLC 959650095.
  6. ^ "Content available through WorldCat Discovery" (XLS). www.oclc.org. OCLC. Retrieved September 22, 2020.
  7. ^ . oclc.org. Archived from the original on March 27, 2019. Retrieved February 11, 2018.
  8. ^ a b Margalit Fox (August 2, 2006). "Frederick G. Kilgour, Innovative Librarian, Dies at 92". The New York Times. Retrieved December 22, 2009. Frederick G. Kilgour, a distinguished librarian who nearly 40 years ago transformed a consortium of Ohio libraries into what is now the largest library cooperative in the world, making the catalogs of thousands of libraries around the globe instantly accessible to far-flung patrons, died on Monday in Chapel Hill, N.C. He was 92.
  9. ^ "A brief history of WorldCat". oclc.org. February 10, 2015. Retrieved February 13, 2014.
  10. ^ O'Neill, Nancy (November–December 2004). "Open WorldCat Pilot: A User's Perspective". Searcher. 12 (10): 54–60. ISSN 1070-4795. OCLC 201889986.
  11. ^ Quint, Barbara (October 27, 2003). "OCLC project opens WorldCat records to Google". infotoday.com. Information Today. Retrieved June 26, 2019.
  12. ^ "WikiD". OCLC. Retrieved March 5, 2015.
  13. ^ Storey, Tom (September 2007). "A WorldCat community: using WorldCat.org to build a social network of the world's library users" (PDF). NextSpace. OCLC (7): 16–17. ISSN 1559-0011. Retrieved June 26, 2019. Online ratings, tags, reviews, recommendations, lists, rankings, personal profiles—the social media revolution is here. It seems the world has exploded with Web 2.0, social networking tools and sites.
  14. ^ Bertot, John Carlo; Berube, Katy; Devereaux, Peter; Dhakal, Kerry; Powers, Stephen; Ray, Jennie (April 2012). "Assessing the usability of WorldCat Local: findings and considerations". The Library Quarterly. 82 (2): 207–221. doi:10.1086/664588. JSTOR 10.1086/664588. S2CID 61287720. Breeding [2] also makes the following observations about the benefits of the search system: the presence of a more visually appealing interface; the grouping of related material; faceted navigation; and the capability for user-generated content (e.g., reviews). Eden [3] also refers to the advantages of user-generated content possible in WCL...
  15. ^ a b Hane, Paula J. (July 17, 2006). "OCLC to open WorldCat searching to the world". infotoday.com. Information Today. Retrieved June 26, 2019.
  16. ^ Prucha, Francis Paul (1994). "National online library catalogs". Handbook for research in American history: a guide to bibliographies and other reference works (2nd ed.). Lincoln: University of Nebraska Press. pp. 25–27. ISBN 0803237014. OCLC 28018047. Online Computer Library Center has developed two new programs. One is called EPIC, a new command-driven full online service with sophisticated searching features, including subject searches, intended for librarians and other experienced users. The other, designed for end-users, is FirstSearch, which contains the database materials found in EPIC or subsets of them but has a menu interface that nonspecialists find easy to use. Both EPIC and FirstSearch make available the full OCLC Online Union Catalog (called WorldCat in FirstSearch), but they also function as online database services, offering their users a wide array of other databases.
  17. ^ Hickey, Thomas B. (April 15, 2007). "WorldCat Identities: Another View of the Catalog" (PDF). NextSpace. OCLC (6): 18–19. ISSN 1559-0011. Retrieved January 18, 2016.
  18. ^ . oclc.org. OCLC. May 11, 2017. Archived from the original on December 9, 2017. Retrieved April 25, 2020.
  19. ^ Orlowitz, Jake (May 11, 2017). "You can now add automatically generated citations to millions of books on Wikipedia". blog.wikimedia.org. Wikimedia Foundation. Retrieved April 25, 2020.
  20. ^ Michalko, Jim (October 12, 2017). "Syncing Catalogs with thousands of Libraries in 120 Countries through OCLC". blog.archive.org. Internet Archive. Retrieved July 18, 2020.
  21. ^ Price, Gary (May 24, 2022). "OCLC releases more than 150 million WorldCat Entities as the foundation of a linked data infrastructure". InfoDocket.
  22. ^ "Find WorldCat Entities to improve resource discoverability through connections". www.oclc.org. from the original on May 24, 2022. Retrieved March 25, 2023.
  23. ^ "WorldCat Identities". OCLC. Retrieved March 15, 2023. The research prototype application is no longer supported or maintained ... We have taken the findings of the research effort and used them to start to build the WorldCat Entities data. These new Entities and their persistent URIs will serve as the foundation for future linked data services similar to those explored in the Identities Research work.
  24. ^ Price, Gary (August 24, 2022). "OCLC Officially Announces the Launch of a 'Redesigned and Reimagined' WorldCat.org". InfoDocket. Retrieved August 29, 2022.
  25. ^ "Frequently Asked Questions". WorldCat. Retrieved August 29, 2022.
  26. ^ "About data sync collections – OCLC Support". www.oclc.org. OCLC. April 14, 2017. Retrieved June 18, 2021.
  27. ^ "What is WorldCat?". worldcat.org. Retrieved February 13, 2015.
  28. ^ Schonfeld, Roger C. (December 5, 2019). "What are the larger implications of Ex Libris buying Innovative?". sr.ithaka.org. Retrieved April 25, 2020. OCLC's WorldShare cloud system has yet to achieve critical mass, amounting to 10% of the academic market (but only 4% of ARL), and OCLC's entire public library business represents just 10% of the public library market. For another source of statistics on library system market share, see: "Library Technology Guides: Marketshare Report". librarytechnology.org.
  29. ^ Breeding, Marshall (March 2014). "OCLC announces WorldCat Discovery service". Smart Libraries Newsletter. American Library Association. 34 (3): 6–7. ISSN 1541-8820.
  30. ^ "Connexion – Features". www.oclc.org. OCLC. Retrieved June 18, 2021.
  31. ^ Dean, Becky (March 3, 2005). "OCLC Authorities migration timeline". bibco@listserv.loc.gov (Mailing list). Retrieved June 26, 2019.
  32. ^ "WorldShare Record Manager: Record-at-a-time cataloging service". www.oclc.org. OCLC. April 2, 2021. Retrieved June 18, 2021.
  33. ^ "WorldCat Metadata API | OCLC Developer Network". www.oclc.org. OCLC. Retrieved June 18, 2021.
  34. ^ "OCLC cataloging application comparison". www.oclc.org. OCLC. Retrieved June 18, 2021.

Further reading

  • Blackman, Cathy; Moore, Erica Rae; Seikel, Michele; Smith, Mandi (July 2014). "WorldCat and SkyRiver: a comparison of record quantity and fullness". Library Resources & Technical Services. 58 (3): 178–186. doi:10.5860/lrts.58n3.178.
  • Breeding, Marshall (May 2015). "Library services platforms: a maturing genre of products". Library Technology Reports. 51 (4): 1–38. doi:10.5860/ltr.51n4.
  • Matthews, Joseph R. (July 2016). "An environmental scan of OCLC alternatives: a management perspective". Public Library Quarterly. 35 (3): 175–187. doi:10.1080/01616846.2016.1210440.
  • McKenzie, Elizabeth (January 2012). OCLC changes its rules for use of records in WorldCat: library community pushback through blogs and cultures of resistance (Technical report). Boston: Suffolk University Law School. Research paper 12-06.
  • What the OCLC online union catalog means to me: a collection of essays. Dublin, Ohio: OCLC. 1997. ISBN 1556532237. OCLC 37492023.
  • Wilson, Kristen (August 2016). "The knowledge base at the center of the universe". Library Technology Reports. 52 (6): 1–35. doi:10.5860/ltr.52n6.
  • "WorldCat data licensing" (PDF). oclc.org. Retrieved December 31, 2018. See also: "Data licenses & attribution". oclc.org. January 14, 2017. Retrieved December 31, 2018. Information about licensing of WorldCat records and some other OCLC data.

External links

  • Official website  
  • "WorldCat". oclc.org. Retrieved December 31, 2018. Information on the OCLC website about WorldCat.
  • "Bibliographic Formats and Standards". oclc.org. Retrieved December 31, 2018.
  • "WorldCat Identities". worldcat.org. Retrieved December 31, 2018.

April 02, 2023
worldcat, information, using, links, wikipedia, articles, template, oclc, union, catalog, that, itemizes, collections, tens, thousands, institutions, mostly, libraries, many, countries, that, current, past, members, oclc, global, cooperative, operated, oclc, m. For information on using WorldCat links in Wikipedia articles see Template OCLC WorldCat is a union catalog that itemizes the collections of tens of thousands of institutions mostly libraries in many countries that are current or past members of the OCLC global cooperative 3 It is operated by OCLC Inc 4 Many of the OCLC member libraries collectively maintain WorldCat s database the world s largest bibliographic database 5 The database includes other information sources in addition to member library collections 6 OCLC makes WorldCat itself available free to libraries but the catalog is the foundation for other subscription OCLC services such as resource sharing and collection management WorldCat is used by librarians for cataloging and research and by the general public WorldCatScreenshotWorldCat homepage as of June 2019Type of siteNetwork of library content and servicesAvailable in13 languages 1 List of languagesChinese Simplified Chinese Traditional CzechDutchEnglishFrenchGermanItalianKoreanJapanesePortugueseSpanishThaiUrduOwnerOCLCURLwww wbr worldcat wbr orgCommercialNoRegistrationOptional but some features require registration such as writing reviews and making lists or bibliographies LaunchedJanuary 21 1998 25 years ago 1998 01 21 date of registry of the new domain name the database already existed since 1971 2 Current statusOnlineContent licenseCopyright policyOCLC number756372754As of December 2021 update WorldCat contained over 540 million bibliographic records in 483 languages representing over 3 billion physical and digital library assets 4 and the WorldCat persons dataset mined from WorldCat included over 100 million people 7 Contents 1 History 2 System architecture 3 See also 4 References 5 Further reading 6 External linksHistory EditOCLC was founded in 1967 under the leadership of Fred Kilgour 8 That same year OCLC began to develop the union catalog technology that would later evolve into WorldCat the first catalog records were added in 1971 8 9 In 2003 OCLC began the Open WorldCat pilot program making abbreviated records from a subset of WorldCat available to partner web sites and booksellers to increase the accessibility of its subscribing member libraries collections 10 11 In October 2005 the OCLC technical staff began a wiki project WikiD allowing readers to add commentary and structured field information associated with any WorldCat record 12 WikiD was later phased out although WorldCat later incorporated user generated content in other ways 13 14 In 2006 it became possible for anyone to search WorldCat directly at its open website WorldCat org 15 not only through the subscription FirstSearch interface where it had been available on the web to subscribing libraries for more than a decade before 16 Options for more sophisticated searches of WorldCat have remained available through the FirstSearch interface 15 In 2007 WorldCat Identities began providing pages for 20 million identities which are metadata about names predominantly authors and persons who are the subjects of published titles 17 In 2017 OCLC s WorldCat Search API was integrated into the cite tool of Wikipedia s VisualEditor allowing Wikipedia editors to cite sources from WorldCat easily 18 19 Beginning in 2017 OCLC and the Internet Archive have collaborated to make the Internet Archive s records of digitized books available in WorldCat 20 In May 2022 OCLC announced WorldCat Entities a new infrastructure for library linked data 21 22 Maintenance of WorldCat Identities was suspended and the service will be discontinued as it is being replaced by WorldCat Entities 23 In August 2022 OCLC launched a redesigned and reimagined WorldCat org website with the stated goal to offer greater accessibility to the collections 24 The website now requires the use of JavaScript and is therefore no longer accessible for users of older web browsers or those that have JavaScript disabled for security reasons The update also removed users book reviews and replaced them with reviews from Amazon subsidiary GoodReads 25 System architecture EditLocal catalogs of many OCLC member libraries are intermittently synchronized with the WorldCat database 26 WorldCat allows participating institutions to add direct links from WorldCat to their own local catalog entries for particular items which enables the user to click through to the local catalog to quickly determine an item s real time status for example whether or not it is checked out 27 In a small percentage of libraries 28 the local catalog is also run by OCLC using an integrated library system called WorldCat Discovery and WorldShare Management Services 29 Library contributions to WorldCat are made via the Connexion computer program 30 which was introduced in 2001 its predecessor OCLC Passport was phased out in May 2005 31 Cataloging librarians may also use the WorldShare Record Manager 32 or WorldCat Metadata API 33 for similar purposes 34 See also EditCopac Faceted Application of Subject Terminology FAST List of academic databases and search engines Open LibraryReferences Edit Search for library items WorldCat OCLC Retrieved March 29 2017 1998 is the date of registry of the WorldCat org domain see WorldCat org WHOIS DNS amp Domain Info DomainTools WHOIS Retrieved January 21 2017 However the union catalog that became WorldCat was started three decades earlier and it was already available on the web to subscriber libraries at OCLC org several years before WorldCat org was a registered domain name see OCLC org WHOIS DNS amp Domain Info DomainTools WHOIS Retrieved June 26 2019 The 2012 2013 OCLC Annual Report noted that the number of participating libraries includes active and inactive symbols was 78 985 2012 2013 OCLC Annual Report Report p 5 OCLC 1226313226 Retrieved March 10 2022 a b Inside WorldCat www oclc org OCLC Retrieved June 19 2021 Oswald Godfrey 2017 Largest unified international library catalog Library world records 3rd ed Jefferson NC McFarland amp Company p 291 ISBN 9781476667775 OCLC 959650095 Content available through WorldCat Discovery XLS www oclc org OCLC Retrieved September 22 2020 Data strategy WorldCat oclc org Archived from the original on March 27 2019 Retrieved February 11 2018 a b Margalit Fox August 2 2006 Frederick G Kilgour Innovative Librarian Dies at 92 The New York Times Retrieved December 22 2009 Frederick G Kilgour a distinguished librarian who nearly 40 years ago transformed a consortium of Ohio libraries into what is now the largest library cooperative in the world making the catalogs of thousands of libraries around the globe instantly accessible to far flung patrons died on Monday in Chapel Hill N C He was 92 A brief history of WorldCat oclc org February 10 2015 Retrieved February 13 2014 O Neill Nancy November December 2004 Open WorldCat Pilot A User s Perspective Searcher 12 10 54 60 ISSN 1070 4795 OCLC 201889986 Quint Barbara October 27 2003 OCLC project opens WorldCat records to Google infotoday com Information Today Retrieved June 26 2019 WikiD OCLC Retrieved March 5 2015 Storey Tom September 2007 A WorldCat community using WorldCat org to build a social network of the world s library users PDF NextSpace OCLC 7 16 17 ISSN 1559 0011 Retrieved June 26 2019 Online ratings tags reviews recommendations lists rankings personal profiles the social media revolution is here It seems the world has exploded with Web 2 0 social networking tools and sites Bertot John Carlo Berube Katy Devereaux Peter Dhakal Kerry Powers Stephen Ray Jennie April 2012 Assessing the usability of WorldCat Local findings and considerations The Library Quarterly 82 2 207 221 doi 10 1086 664588 JSTOR 10 1086 664588 S2CID 61287720 Breeding 2 also makes the following observations about the benefits of the search system the presence of a more visually appealing interface the grouping of related material faceted navigation and the capability for user generated content e g reviews Eden 3 also refers to the advantages of user generated content possible in WCL a b Hane Paula J July 17 2006 OCLC to open WorldCat searching to the world infotoday com Information Today Retrieved June 26 2019 Prucha Francis Paul 1994 National online library catalogs Handbook for research in American history a guide to bibliographies and other reference works 2nd ed Lincoln University of Nebraska Press pp 25 27 ISBN 0803237014 OCLC 28018047 Online Computer Library Center has developed two new programs One is called EPIC a new command driven full online service with sophisticated searching features including subject searches intended for librarians and other experienced users The other designed for end users is FirstSearch which contains the database materials found in EPIC or subsets of them but has a menu interface that nonspecialists find easy to use Both EPIC and FirstSearch make available the full OCLC Online Union Catalog called WorldCat in FirstSearch but they also function as online database services offering their users a wide array of other databases Hickey Thomas B April 15 2007 WorldCat Identities Another View of the Catalog PDF NextSpace OCLC 6 18 19 ISSN 1559 0011 Retrieved January 18 2016 OCLC and Wikipedia Library link citations to millions of library materials expanding access to quality sources oclc org OCLC May 11 2017 Archived from the original on December 9 2017 Retrieved April 25 2020 Orlowitz Jake May 11 2017 You can now add automatically generated citations to millions of books on Wikipedia blog wikimedia org Wikimedia Foundation Retrieved April 25 2020 Michalko Jim October 12 2017 Syncing Catalogs with thousands of Libraries in 120 Countries through OCLC blog archive org Internet Archive Retrieved July 18 2020 Price Gary May 24 2022 OCLC releases more than 150 million WorldCat Entities as the foundation of a linked data infrastructure InfoDocket Find WorldCat Entities to improve resource discoverability through connections www oclc org Archived from the original on May 24 2022 Retrieved March 25 2023 WorldCat Identities OCLC Retrieved March 15 2023 The research prototype application is no longer supported or maintained We have taken the findings of the research effort and used them to start to build the WorldCat Entities data These new Entities and their persistent URIs will serve as the foundation for future linked data services similar to those explored in the Identities Research work Price Gary August 24 2022 OCLC Officially Announces the Launch of a Redesigned and Reimagined WorldCat org InfoDocket Retrieved August 29 2022 Frequently Asked Questions WorldCat Retrieved August 29 2022 About data sync collections OCLC Support www oclc org OCLC April 14 2017 Retrieved June 18 2021 What is WorldCat worldcat org Retrieved February 13 2015 Schonfeld Roger C December 5 2019 What are the larger implications of Ex Libris buying Innovative sr ithaka org Retrieved April 25 2020 OCLC s WorldShare cloud system has yet to achieve critical mass amounting to 10 of the academic market but only 4 of ARL and OCLC s entire public library business represents just 10 of the public library market For another source of statistics on library system market share see Library Technology Guides Marketshare Report librarytechnology org Breeding Marshall March 2014 OCLC announces WorldCat Discovery service Smart Libraries Newsletter American Library Association 34 3 6 7 ISSN 1541 8820 Connexion Features www oclc org OCLC Retrieved June 18 2021 Dean Becky March 3 2005 OCLC Authorities migration timeline bibco listserv loc gov Mailing list Retrieved June 26 2019 WorldShare Record Manager Record at a time cataloging service www oclc org OCLC April 2 2021 Retrieved June 18 2021 WorldCat Metadata API OCLC Developer Network www oclc org OCLC Retrieved June 18 2021 OCLC cataloging application comparison www oclc org OCLC Retrieved June 18 2021 Further reading EditBlackman Cathy Moore Erica Rae Seikel Michele Smith Mandi July 2014 WorldCat and SkyRiver a comparison of record quantity and fullness Library Resources amp Technical Services 58 3 178 186 doi 10 5860 lrts 58n3 178 Breeding Marshall May 2015 Library services platforms a maturing genre of products Library Technology Reports 51 4 1 38 doi 10 5860 ltr 51n4 Matthews Joseph R July 2016 An environmental scan of OCLC alternatives a management perspective Public Library Quarterly 35 3 175 187 doi 10 1080 01616846 2016 1210440 McKenzie Elizabeth January 2012 OCLC changes its rules for use of records in WorldCat library community pushback through blogs and cultures of resistance Technical report Boston Suffolk University Law School Research paper 12 06 What the OCLC online union catalog means to me a collection of essays Dublin Ohio OCLC 1997 ISBN 1556532237 OCLC 37492023 Wilson Kristen August 2016 The knowledge base at the center of the universe Library Technology Reports 52 6 1 35 doi 10 5860 ltr 52n6 WorldCat data licensing PDF oclc org Retrieved December 31 2018 See also Data licenses amp attribution oclc org January 14 2017 Retrieved December 31 2018 Information about licensing of WorldCat records and some other OCLC data External links EditOfficial website WorldCat oclc org Retrieved December 31 2018 Information on the OCLC website about WorldCat Bibliographic Formats and Standards oclc org Retrieved December 31 2018 WorldCat Identities worldcat org Retrieved December 31 2018 Retrieved from https en wikipedia org w index php title WorldCat amp oldid 1146591741, wikipedia, wiki, book, books, library,

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