APA (7th ed.) Citation

Griffin, G. (1967). An operational necessity. Putnam.

Chicago Style (17th ed.) Citation

Griffin, Gwyn. An Operational Necessity. New York: Putnam, 1967.

MLA (9th ed.) Citation

Griffin, Gwyn. An Operational Necessity. Putnam, 1967.

Warning: These citations may not always be 100% accurate.