APA (7th ed.) Citation

Geological Survey (U.S.), Lawrence, E. P., Wanty, R. B., & Briggs, P. H. (1991). Maps showing hydrostatic levels and general ground-water quality for an area near Conifer, Colorado. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Errol P. Lawrence, Richard B. Wanty, and P. H. Briggs. Maps Showing Hydrostatic Levels and General Ground-water Quality for an Area Near Conifer, Colorado. Reston, Va.: The Survey, 1991.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Maps Showing Hydrostatic Levels and General Ground-water Quality for an Area Near Conifer, Colorado. The Survey, 1991.