APA (7th ed.) Citation

Geological Survey (U.S.) & Zech, R. S. (1988). Geologic map of the Fossil Ridge area, Gunnison County, Colorado. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.) and R. S. Zech. Geologic Map of the Fossil Ridge Area, Gunnison County, Colorado. Reston, Va.: The Survey, 1988.

MLA (9th ed.) Citation

Geological Survey (U.S.) and R. S. Zech. Geologic Map of the Fossil Ridge Area, Gunnison County, Colorado. The Survey, 1988.

Warning: These citations may not always be 100% accurate.