APA (7th ed.) Citation

Kahn. (1978). Hitler's spies: German Military Intelligence in World War 11. Collier Books.

Chicago Style (17th ed.) Citation

Kahn. Hitler's Spies: German Military Intelligence in World War 11. New York: Collier Books, 1978.

MLA (8th ed.) Citation

Kahn. Hitler's Spies: German Military Intelligence in World War 11. Collier Books, 1978.

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