APA (7th ed.) Citation

Gabrielson, I. N., & Horn, E. E. (1930). Porcupine control in the western states. U. S. Govt. Print. Off.].

Chicago Style (17th ed.) Citation

Gabrielson, Ira Noel, and Everett Ellis Horn. Porcupine Control in the Western States. Washington: U. S. Govt. Print. Off.], 1930.

MLA (9th ed.) Citation

Gabrielson, Ira Noel, and Everett Ellis Horn. Porcupine Control in the Western States. U. S. Govt. Print. Off.], 1930.