Potentiometric surfaces and water-level trends in the Cockfield and Wilcox aquifers of southern and northeastern Arkansas, 2006 [electronic resource] / by T.P. Schrader ; prepared in cooperation with the Arkansas Natural Resources Commission and the Arkansas Geological Survey.
Imprint
Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2007.