APA (7th ed.) Citation

London, J., & Labor, E. (1994). The portable Jack London. Penguin Books.

Chicago Style (17th ed.) Citation

London, Jack, and Earle Labor. The Portable Jack London. New York: Penguin Books, 1994.

MLA (9th ed.) Citation

London, Jack, and Earle Labor. The Portable Jack London. Penguin Books, 1994.