APA (7th ed.) Citation

Breuer, W. B. (1989). Hitler's undercover war: The Nazi espionage invasion of the U.S.A. St. Martin's Press.

Chicago Style (17th ed.) Citation

Breuer, William B. Hitler's Undercover War: The Nazi Espionage Invasion of the U.S.A. New York: St. Martin's Press, 1989.

MLA (9th ed.) Citation

Breuer, William B. Hitler's Undercover War: The Nazi Espionage Invasion of the U.S.A. St. Martin's Press, 1989.