Dyfyniad APA
Johnsgard, P. A. (1997). The avian brood parasites: Deception at the nest. Oxford University Press.
Dyfyniad Arddull Chicago
Johnsgard, Paul A. The Avian Brood Parasites: Deception at the Nest. New York: Oxford University Press, 1997.
Dyfyniad MLA
Johnsgard, Paul A. The Avian Brood Parasites: Deception at the Nest. Oxford University Press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.