(1975). Surficial geologic map of the Old Faithful Quadrangle, Yellowstone National Park, Wyoming. U.S. Geological Survey.
Chicago Style (17th ed.) CitationSurficial Geologic Map of the Old Faithful Quadrangle, Yellowstone National Park, Wyoming. Washington, D.C: U.S. Geological Survey, 1975.
MLA (9th ed.) CitationSurficial Geologic Map of the Old Faithful Quadrangle, Yellowstone National Park, Wyoming. U.S. Geological Survey, 1975.
Warning: These citations may not always be 100% accurate.