APA (7th ed.) Citation

Hesse, H., & Creighton, B. (1955). Steppenwolf. Penguin Books.

Chicago Style (17th ed.) Citation

Hesse, Hermann, and Basil Creighton. Steppenwolf. New York: Penguin Books, 1955.

MLA (9th ed.) Citation

Hesse, Hermann, and Basil Creighton. Steppenwolf. Penguin Books, 1955.