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WorldCat
WorldCat is a union catalog that itemizes the collections of 72,000 libraries in 170 countries and territories〔(【引用サイトリンク】 title =A global library resource )〕 that participate in the Online Computer Library Center (OCLC) global cooperative. It is operated by OCLC Online Computer Library Center, Inc. (sic)〔(【引用サイトリンク】title=What is WorldCat? )〕 The participating libraries collectively maintain WorldCat's database.
==History==
The OCLC was created in 1967, the same year Fred Kilgour founded WorldCat, though the first catalog records were added in 1971. It contains more than 330 million records, representing over 2 billion physical and digital assets in 485 languages, .〔 It is the world's largest bibliographic database. OCLC makes WorldCat itself available free to libraries, but the catalog is the foundation for other fee-based OCLC services (such as resource sharing and collection management).
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 member libraries' collections. In 2006, it became possible to search WorldCat directly at its website. In 2007, WorldCat Identities began providing pages for 20 million "identities", predominantly authors and persons who are the subjects of published titles.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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