Perkins, E. J. (1974). Biology of esturies and coastal waters. Academic Press.
Chicago Style aipamenaPerkins, E. J. Biology of Esturies and Coastal Waters. New York: Academic Press, 1974.
MLA aipamenaPerkins, E. J. Biology of Esturies and Coastal Waters. Academic Press, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.