APA (7th ed.) Citation

Cook, M. G. (1956). The new library key. The H.W. Wilson Company.

Chicago Style (17th ed.) Citation

Cook, Margaret G. The New Library Key. New York: The H.W. Wilson Company, 1956.

MLA (9th ed.) Citation

Cook, Margaret G. The New Library Key. The H.W. Wilson Company, 1956.