Cita APA (7th ed.)

Steinbeck, J. (2000). The Grapes Of Wrath. Penguin.

Cita Chicago (17th ed.)

Steinbeck, John. The Grapes Of Wrath. London: Penguin, 2000.

Cita MLA (9th ed.)

Steinbeck, John. The Grapes Of Wrath. Penguin, 2000.