APA (7th ed.) Citation

Hereford, R. (1979). Preliminary geologic map of the Little Colorado River Valley between Cameron and Winslow, Arizona. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Hereford, Richard. Preliminary Geologic Map of the Little Colorado River Valley Between Cameron and Winslow, Arizona. [Reston, Va.]: Department of the Interior, U.S. Geological Survey, 1979.

MLA (9th ed.) Citation

Hereford, Richard. Preliminary Geologic Map of the Little Colorado River Valley Between Cameron and Winslow, Arizona. Department of the Interior, U.S. Geological Survey, 1979.