Johnsgard, P. A. (1990). Hawks, eagles and falcons of North America: Biology and natural history. Washington, D. C.: Smithsonian Institution.
Chicago Style CitationJohnsgard, Paul A. Hawks, Eagles and Falcons of North America: Biology and Natural History. Washington, D. C.: Smithsonian Institution, 1990.
MLA CitationJohnsgard, Paul A. Hawks, Eagles and Falcons of North America: Biology and Natural History. Washington, D. C.: Smithsonian Institution, 1990.
Warning: These citations may not always be 100% accurate.