Mason, W., & Marshall, N. L. (1983). The human side of biology.
Chicago Style aipamenaMason, William, and Norton Little Marshall. The Human Side of Biology. New York : Harper's & Row, 1983.
MLA aipamenaMason, William, and Norton Little Marshall. The Human Side of Biology. 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.