APA (7th ed.) Citation

Putnam, L. D., & Long, A. J. (2009). Numerical groundwater-flow model of the Minnelusa and Madison hydrogeologic units in the Rapid City area, South Dakota. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Putnam, Larry D., and Andrew J. Long. Numerical Groundwater-flow Model of the Minnelusa and Madison Hydrogeologic Units in the Rapid City Area, South Dakota. Reston, Va.: U.S. Geological Survey, 2009.

MLA (9th ed.) Citation

Putnam, Larry D., and Andrew J. Long. Numerical Groundwater-flow Model of the Minnelusa and Madison Hydrogeologic Units in the Rapid City Area, South Dakota. U.S. Geological Survey, 2009.