APA (7th ed.) Citation

Bear, G. D., & Jones, G. W. (1973). History and distribution of bighorn sheep in Colorado. Division of Wildlife.

Chicago Style (17th ed.) Citation

Bear, George D., and George William Jones. History and Distribution of Bighorn Sheep in Colorado. [Denver]: Division of Wildlife, 1973.

MLA (9th ed.) Citation

Bear, George D., and George William Jones. History and Distribution of Bighorn Sheep in Colorado. Division of Wildlife, 1973.