APA (7th ed.) Citation

Burton, P. J. K. (1973). Owls of the world: Their evolution, structure, and ecology ([1st American ed.].). Dutton.

Chicago Style (17th ed.) Citation

Burton, Philip John Kennedy. Owls of the World: Their Evolution, Structure, and Ecology. [1st American ed.]. New York: Dutton, 1973.

MLA (9th ed.) Citation

Burton, Philip John Kennedy. Owls of the World: Their Evolution, Structure, and Ecology. [1st American ed.]. Dutton, 1973.