APA (7th ed.) Citation

United States. National Park Service & Hague, A. (1928). Geological history of Yellowstone National Park. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. National Park Service and A. Hague. Geological History of Yellowstone National Park. Washington: U.S. GPO, 1928.

MLA (9th ed.) Citation

United States. National Park Service and A. Hague. Geological History of Yellowstone National Park. U.S. GPO, 1928.

Warning: These citations may not always be 100% accurate.