APA (7th ed.) Citation

Steinbeck, J. (1989). The grapes of wrath. Viking Penguin.

Chicago Style (17th ed.) Citation

Steinbeck, John. The Grapes of Wrath. New York [u.a.]: Viking Penguin, 1989.

MLA (9th ed.) Citation

Steinbeck, John. The Grapes of Wrath. Viking Penguin, 1989.