APA (7th ed.) Citation

Dickinson, R. E. (1943). The German Lebensraum. Penguin Books.

Chicago Style (17th ed.) Citation

Dickinson, Robert E. The German Lebensraum. Harmondsworth: Penguin Books, 1943.

MLA (8th ed.) Citation

Dickinson, Robert E. The German Lebensraum. Penguin Books, 1943.

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