APA (7th ed.) Citation

Geological Survey (U.S.) & Minor, S. A. (2019). Geologic map of the Poncha Pass area, Chaffee, Fremont, and Saguache Counties, Colorado. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and Scott A. Minor. Geologic Map of the Poncha Pass Area, Chaffee, Fremont, and Saguache Counties, Colorado. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 2019.

MLA (9th ed.) Citation

Geological Survey (U.S.) and Scott A. Minor. Geologic Map of the Poncha Pass Area, Chaffee, Fremont, and Saguache Counties, Colorado. U.S. Department of the Interior, U.S. Geological Survey, 2019.