APA-referens (7:e uppl.)

Steinbeck, J. (1939). The grapes of wrath. The Viking press.

Chicago-referens (17:e uppl.)

Steinbeck, John. The Grapes of Wrath. New York: The Viking press, 1939.

MLA-referens (8:e uppl.)

Steinbeck, John. The Grapes of Wrath. The Viking press, 1939.