Peterson, R. T. (1957). How to know the birds: An introduction to bird recognition with over 400 black-and-white illustrations and 72 full-color illustrations by the author. New American Library.
Chicago Style (17th ed.) CitationPeterson, Roger Tory. How to Know the Birds: An Introduction to Bird Recognition with over 400 Black-and-white Illustrations and 72 Full-color Illustrations by the Author. [New York]: New American Library, 1957.
MLA (9th ed.) CitationPeterson, Roger Tory. How to Know the Birds: An Introduction to Bird Recognition with over 400 Black-and-white Illustrations and 72 Full-color Illustrations by the Author. New American Library, 1957.
Warning: These citations may not always be 100% accurate.