APA (7th ed.) Citation

Knowlton, F. H. (1914). Fossil forests of the Yellowstone national park.: Department of the interior. Office of the secretary. [Govt. Print. Off.].

Chicago Style (17th ed.) Citation

Knowlton, Frank Hall. Fossil Forests of the Yellowstone National Park.: Department of the Interior. Office of the Secretary. [Washington]: [Govt. Print. Off.], 1914.

MLA (9th ed.) Citation

Knowlton, Frank Hall. Fossil Forests of the Yellowstone National Park.: Department of the Interior. Office of the Secretary. [Govt. Print. Off.], 1914.