APA (7th ed.) Citation

Blank, H. R. (1974). Geologic map of the Frank Island guadrangle, Yellowstone National Park, Wyoming. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Blank, H. Richard. Geologic Map of the Frank Island Guadrangle, Yellowstone National Park, Wyoming. Reston, Va.: U.S. Geological Survey, 1974.

MLA (9th ed.) Citation

Blank, H. Richard. Geologic Map of the Frank Island Guadrangle, Yellowstone National Park, Wyoming. U.S. Geological Survey, 1974.