APA (7th ed.) Citation

Einzig, P. (1940). Europe in chains (1. publ.). Penguin.

Chicago Style (17th ed.) Citation

Einzig, Paul. Europe in Chains. 1. publ. New York: Penguin, 1940.

MLA (9th ed.) Citation

Einzig, Paul. Europe in Chains. 1. publ. Penguin, 1940.

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