APA (7th ed.) Citation

Steinbeck, J., & Covici, P. (1976). The portable Steinbeck. Penguin Books.

Chicago Style (17th ed.) Citation

Steinbeck, John, and Pascal Covici. The Portable Steinbeck. New York: Penguin Books, 1976.

MLA (8th ed.) Citation

Steinbeck, John, and Pascal Covici. The Portable Steinbeck. Penguin Books, 1976.