APA

Steinbeck J., . (1972). The grapes of wrath. New York, N.Y: Penguin Books.

Chicago

Steinbeck John, . 1972. The grapes of wrath. New York, N.Y: Penguin Books.

Harvard

Steinbeck J., . (1972). The grapes of wrath. New York, N.Y: Penguin Books.

MLA

Steinbeck John, . The grapes of wrath. New York, N.Y: Penguin Books. 1972.