APA (7th ed.) Citation

Willoughby, C. A. (1952). Sorge: Soviet master spy. Kimber.

Chicago Style (17th ed.) Citation

Willoughby, Charles A. Sorge: Soviet Master Spy. London: Kimber, 1952.

MLA (8th ed.) Citation

Willoughby, Charles A. Sorge: Soviet Master Spy. Kimber, 1952.

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