एपीए उद्धरण

(1982). Subject guide to books in print. R.R bowker company.

शिकागो स्टाइल उद्धरण

Subject Guide to Books in Print. New York: R.R bowker company, 1982.

एमएलए उद्धरण

Subject Guide to Books in Print. R.R bowker company, 1982.