APA (7th ed.) Citation

Geological Survey (U.S.), Braddock, W. A., & LaFountain, L. J. (1988). Geologic map of the Crystal Mountain quadrangle, Larimer County, Colorado. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), William A. Braddock, and Lester J. LaFountain. Geologic Map of the Crystal Mountain Quadrangle, Larimer County, Colorado. Reston, Va.: The Survey, 1988.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of the Crystal Mountain Quadrangle, Larimer County, Colorado. The Survey, 1988.