APA (7th ed.) Citation

(1940). The three dictators Mussolini, Stalin, Hitler. London.

Chicago Style (17th ed.) Citation

The Three Dictators Mussolini, Stalin, Hitler. London, 1940.

MLA (8th ed.) Citation

The Three Dictators Mussolini, Stalin, Hitler. London, 1940.

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