APA (7th ed.) Citation

Einzig, P. (1940). Europe in Chains. Penguin Books.

Chicago Style (17th ed.) Citation

Einzig, Paul. Europe in Chains. New York: Penguin Books, 1940.

MLA (8th ed.) Citation

Einzig, Paul. Europe in Chains. Penguin Books, 1940.

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