APA (7th ed.) Citation

Geological Survey (U.S.), Neese, W. D., & Braddock, W. A. (1989). Geologic map of the Pingree Park quadrangle, Larimer County, Colorado. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), William D. Neese, and William A. Braddock. Geologic Map of the Pingree Park Quadrangle, Larimer County, Colorado. Reston, Va.: The Survey, 1989.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geologic Map of the Pingree Park Quadrangle, Larimer County, Colorado. The Survey, 1989.