APA (7th ed.) Citation

Ketchum, R. M. (1955). What is communism? Dutton.

Chicago Style (17th ed.) Citation

Ketchum, Richard M. What Is Communism? New York: Dutton, 1955.

MLA (9th ed.) Citation

Ketchum, Richard M. What Is Communism? Dutton, 1955.

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