APA (7th ed.) Citation

Hammerson, G. A. (1982). Amphibians and reptiles in Colorado (1. print.). Colorado Division of Wildlife.

Chicago Style (17th ed.) Citation

Hammerson, Geoffrey A. Amphibians and Reptiles in Colorado. 1. print. Denver, CO: Colorado Division of Wildlife, 1982.

MLA (9th ed.) Citation

Hammerson, Geoffrey A. Amphibians and Reptiles in Colorado. 1. print. Colorado Division of Wildlife, 1982.