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OCLC Number

Hannah H edited this page Mar 19, 2026 · 1 revision

An OCLC number (or OCN) is a unique identifier for a book or item in the WorldCat database, often used for inter-library loans. You can find it by searching the book title on WorldCat, looking in the "library catalog" details, or within the MARC 001 field, where it often appears without letters.

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