APA (7th ed.) Citation

Geological Survey (U.S.), Robson, S. G., & Banta, E. R. (1987). Geology and hydrology of the deep bedrock aquifers in eastern Colorado. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey (U.S.), Stanley G. Robson, and Edward R. Banta. Geology and Hydrology of the Deep Bedrock Aquifers in Eastern Colorado. [Reston, Va.]: The Survey, 1987.

MLA (9th ed.) Citation

Geological Survey (U.S.), et al. Geology and Hydrology of the Deep Bedrock Aquifers in Eastern Colorado. The Survey, 1987.