APA aipamena

Steinbeck, J. (1976). Portable Steinbeck. Penguin Books.

Chicago Style aipamena

Steinbeck, John. Portable Steinbeck. England: Penguin Books, 1976.

MLA aipamena

Steinbeck, John. Portable Steinbeck. Penguin Books, 1976.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.