APA (7th ed.) Citation

Zacharias, E. M. (1946). Secret missions: The story of an intelligence officer. G. P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Zacharias, Ellis M. Secret Missions: The Story of an Intelligence Officer. New York: G. P. Putnam's Sons, 1946.

MLA (9th ed.) Citation

Zacharias, Ellis M. Secret Missions: The Story of an Intelligence Officer. G. P. Putnam's Sons, 1946.