APA aipamena

Steinbeck, J. (1992). The pearl. Viking ; Penguin Books.

Chicago Style aipamena

Steinbeck, John. The Pearl. New York, N.Y., U.S.A.: Viking ; Penguin Books, 1992.

MLA aipamena

Steinbeck, John. The Pearl. Viking ; Penguin Books, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.