Steinbeck, J. (1992). The pearl. Viking ; Penguin Books.
Chicago Style aipamenaSteinbeck, John. The Pearl. New York, N.Y., U.S.A.: Viking ; Penguin Books, 1992.
MLA aipamenaSteinbeck, John. The Pearl. Viking ; Penguin Books, 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.