APA aipamena

Steinbeck, J. (1993). The grapes of wrath. New York: Everyman's Library.

Chicago Style aipamena

Steinbeck, John. The Grapes of Wrath. New York: Everyman's Library, 1993.

MLA aipamena

Steinbeck, John. The Grapes of Wrath. New York: Everyman's Library, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.