APA (7th ed.) Citation

Steinbeck, J. (1993). The grapes of wrath (6th print.). Knopf.

Chicago Style (17th ed.) Citation

Steinbeck, John. The Grapes of Wrath. 6th print. New York, NY [u.a.]: Knopf, 1993.

MLA (9th ed.) Citation

Steinbeck, John. The Grapes of Wrath. 6th print. Knopf, 1993.