Pitkin, G. M. (1996). The National Electronic Library: A guide to the future for library managers. Greenwood Press.
Lua i Stíl Chicago (17ú heag.)Pitkin, Gary M. The National Electronic Library: A Guide to the Future for Library Managers. Westport, Conn: Greenwood Press, 1996.
Lua MLA (9ú heag.)Pitkin, Gary M. The National Electronic Library: A Guide to the Future for Library Managers. Greenwood Press, 1996.
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