APA (7th ed.) Citation

Pettingill, O. S. (1939). A laboratory and field manual of ornithology. Burgess Pub. Co..

Chicago Style (17th ed.) Citation

Pettingill, Olin Sewall. A Laboratory and Field Manual of Ornithology. Minneapolis, Minn.: Burgess Pub. Co., 1939.

MLA (9th ed.) Citation

Pettingill, Olin Sewall. A Laboratory and Field Manual of Ornithology. Burgess Pub. Co., 1939.

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