APA (7th ed.) Citation

Ulrich, T. J. (1984). Birds of the northern Rockies. Mountain Press Pub. Co..

Chicago Style (17th ed.) Citation

Ulrich, Tom J. Birds of the Northern Rockies. Missoula: Mountain Press Pub. Co., 1984.

MLA (9th ed.) Citation

Ulrich, Tom J. Birds of the Northern Rockies. Mountain Press Pub. Co., 1984.