Cita APA (7th ed.)

R.R. Bowker Company. (1957). Subject guide to books in print. R.R. Bowker Co..

Cita Chicago (17th ed.)

R.R. Bowker Company. Subject Guide to Books in Print. New York: R.R. Bowker Co., 1957.

Cita MLA (8th ed.)

R.R. Bowker Company. Subject Guide to Books in Print. R.R. Bowker Co., 1957.