George, J. C., & Berger, A. J. (1966). Avian myology. Academic press.
Chicago Style aipamenaGeorge, J C., and A J. Berger. Avian Myology. New York: Academic press, 1966.
MLA aipamenaGeorge, J C., and A J. Berger. Avian Myology. Academic press, 1966.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.