APA (7th ed.) Citation

Steinbeck, J. (1986). The grapes of wrath. Penguin Books.

Chicago Style (17th ed.) Citation

Steinbeck, John. The Grapes of Wrath. New York, N.Y: Penguin Books, 1986.

MLA (9th ed.) Citation

Steinbeck, John. The Grapes of Wrath. Penguin Books, 1986.