Crews, K. D. (2000). Copyright essentials for librarians and educators. American Library Association.
Lua i Stíl Chicago (17ú heag.)Crews, Kenneth D. Copyright Essentials for Librarians and Educators. Chicago, IL: American Library Association, 2000.
Lua MLA (8ú heag.)Crews, Kenneth D. Copyright Essentials for Librarians and Educators. American Library Association, 2000.
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