APA (7th ed.) Citation

Ley, W. (1941). Bombs and bombing. Modern age books.

Chicago Style (17th ed.) Citation

Ley, Willy. Bombs and Bombing. New York: Modern age books, 1941.

MLA (8th ed.) Citation

Ley, Willy. Bombs and Bombing. Modern age books, 1941.

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