APA (7th ed.) Citation

(1979). Geologic map of the Guffey quadrangle, Park county, Colorado. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Geologic Map of the Guffey Quadrangle, Park County, Colorado. Reston, VA: U.S. Geological Survey, 1979.

MLA (9th ed.) Citation

Geologic Map of the Guffey Quadrangle, Park County, Colorado. U.S. Geological Survey, 1979.

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