APA (7th ed.) Citation

Geological Survey (U.S.), McCafferty, E. D., & Owen, D. E. (1996). Stratigraphic study of Elk Park wetland, Gilpin County, Colorado. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Eric D. McCafferty, and Douglass E. Owen. Stratigraphic Study of Elk Park Wetland, Gilpin County, Colorado. [Reston, Va.?]: The Survey, 1996.

MLA (8th ed.) Citation

Geological Survey (U.S.), et al. Stratigraphic Study of Elk Park Wetland, Gilpin County, Colorado. The Survey, 1996.