APA (7th ed.) Citation

Gide, A., & Watson, D. (2001). The immoralist. Penguin Books.

Chicago Style (17th ed.) Citation

Gide, André, and David Watson. The Immoralist. New York, NY: Penguin Books, 2001.

MLA (9th ed.) Citation

Gide, André, and David Watson. The Immoralist. Penguin Books, 2001.