APA (7th ed.) Citation

Giles, O. (1940). The Gestapo. Clarendon Press.

Chicago Style (17th ed.) Citation

Giles, O.C. The Gestapo. Oxford: Clarendon Press, 1940.

MLA (8th ed.) Citation

Giles, O.C. The Gestapo. Clarendon Press, 1940.

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