APA (7th ed.) Citation

Geological Survey (U.S.), United States. National Aeronautics and Space Administration, & United States. National Park Service. (1975). Geologic map of Yellowstone National Park. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), United States. National Aeronautics and Space Administration, and United States. National Park Service. Geologic Map of Yellowstone National Park. Reston, Va.: The Survey, 1975.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of Yellowstone National Park. The Survey, 1975.