APA Citation

Pettingill, O. S. (1965). The bird watcher's America. New York: McCraw-Hill.

Chicago Style Citation

Pettingill, Olin Sewall. The Bird Watcher's America. New York: McCraw-Hill, 1965.

MLA Citation

Pettingill, Olin Sewall. The Bird Watcher's America. New York: McCraw-Hill, 1965.

Warning: These citations may not always be 100% accurate.