APA (7th ed.) Citation

Heiden, K. (1939). One Man against Europe. Penguin Books.

Chicago Style (17th ed.) Citation

Heiden, Konrad. One Man Against Europe. Harmondsworth: Penguin Books, 1939.

MLA (8th ed.) Citation

Heiden, Konrad. One Man Against Europe. Penguin Books, 1939.

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