APA (7th ed.) Citation

Pettingill, O. S. (1956). A laboratory and field manual of ornithology (3rd ed., rev.). Burgess Pub. Co..

Chicago Style (17th ed.) Citation

Pettingill, Olin Sewall. A Laboratory and Field Manual of Ornithology. 3rd ed., rev. Minneapolis: Burgess Pub. Co., 1956.

MLA (9th ed.) Citation

Pettingill, Olin Sewall. A Laboratory and Field Manual of Ornithology. 3rd ed., rev. Burgess Pub. Co., 1956.