APA (7th ed.) Citation

Marsh, S. P., & Erickson, R. L. (1977). Geologic map of the Brooks Spring quadrangle, Humboldt County, Nevada. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Marsh, Sherman P., and Ralph Leroy Erickson. Geologic Map of the Brooks Spring Quadrangle, Humboldt County, Nevada. Reston, Va.: U.S. Geological Survey, 1977.

MLA (9th ed.) Citation

Marsh, Sherman P., and Ralph Leroy Erickson. Geologic Map of the Brooks Spring Quadrangle, Humboldt County, Nevada. U.S. Geological Survey, 1977.