APA (7th ed.) Citation

National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.), & Welch, H. L. (2009). Quality of shallow groundwater and drinking water in the Mississippi Embayment-Texas Coastal Uplands Aquifer System and the Mississippi River Valley Alluvial Aquifer, south-central United States, 1994-2004. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.), and Heather L. Welch. Quality of Shallow Groundwater and Drinking Water in the Mississippi Embayment-Texas Coastal Uplands Aquifer System and the Mississippi River Valley Alluvial Aquifer, South-central United States, 1994-2004. Reston, Va.: U.S. Geological Survey, 2009.

MLA (9th ed.) Citation

National Water-Quality Assessment Program (U.S.), et al. Quality of Shallow Groundwater and Drinking Water in the Mississippi Embayment-Texas Coastal Uplands Aquifer System and the Mississippi River Valley Alluvial Aquifer, South-central United States, 1994-2004. U.S. Geological Survey, 2009.