APA (7th ed.) Citation

Trotsky, L. (1975). The struggle against fascism in Germany. Penguin Books.

Chicago Style (17th ed.) Citation

Trotsky, Leon. The Struggle Against Fascism in Germany. Harmondsworth, Eng.: Penguin Books, 1975.

MLA (8th ed.) Citation

Trotsky, Leon. The Struggle Against Fascism in Germany. Penguin Books, 1975.