APA (7th ed.) Citation

(1972). Surficial geologic map of the Pelican Cone Quadrangle, Yellowstone National Park and adjoining area, Wyoming. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Surficial Geologic Map of the Pelican Cone Quadrangle, Yellowstone National Park and Adjoining Area, Wyoming. Washington, D.C: U.S. Geological Survey, 1972.

MLA (9th ed.) Citation

Surficial Geologic Map of the Pelican Cone Quadrangle, Yellowstone National Park and Adjoining Area, Wyoming. U.S. Geological Survey, 1972.