APA (7th ed.) Citation

Rush, W. M. (1942). Wild animals of the Rockies: Adventures of a forest ranger. Halcyon house.

Chicago Style (17th ed.) Citation

Rush, William Marshall. Wild Animals of the Rockies: Adventures of a Forest Ranger. Garden City, N.Y.: Halcyon house, 1942.

MLA (9th ed.) Citation

Rush, William Marshall. Wild Animals of the Rockies: Adventures of a Forest Ranger. Halcyon house, 1942.