APA (7th ed.) Citation

Williams, R. S., & Clark, G. M. (1993). Description of techniques to drill, complete, and develop wells and to test and sample aquifers at a surface coal mine in northwestern Colorado. U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Williams, Robert S., and Gregory M. Clark. Description of Techniques to Drill, Complete, and Develop Wells and to Test and Sample Aquifers at a Surface Coal Mine in Northwestern Colorado. Denver, Colorado: U.S. Department of the Interior, U.S. Geological Survey, 1993.

MLA (9th ed.) Citation

Williams, Robert S., and Gregory M. Clark. Description of Techniques to Drill, Complete, and Develop Wells and to Test and Sample Aquifers at a Surface Coal Mine in Northwestern Colorado. U.S. Department of the Interior, U.S. Geological Survey, 1993.