APA (7th ed.) Citation

Richmond, G. M. (1973). Surficial geologic map of the Grassy Lake Reservoir quadrangle, Yellowstone National Park and adjoining area, Wyoming. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Richmond, Gerald Martin. Surficial Geologic Map of the Grassy Lake Reservoir Quadrangle, Yellowstone National Park and Adjoining Area, Wyoming. Washington, D.C.: U.S. Geological Survey, 1973.

MLA (9th ed.) Citation

Richmond, Gerald Martin. Surficial Geologic Map of the Grassy Lake Reservoir Quadrangle, Yellowstone National Park and Adjoining Area, Wyoming. U.S. Geological Survey, 1973.