Geological Survey (U.S.) & Ackerman, D. J. (1989). Potentiometric surfaces of the Mississippi River Valley alluvial aquifer in eastern Arkansas, Spring 1972 and 1980. The Survey.
Chicago Style (17th ed.) CitationGeological Survey (U.S.) and D. J. Ackerman. Potentiometric Surfaces of the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, Spring 1972 and 1980. Little Rock, Ark.: The Survey, 1989.
MLA (9th ed.) CitationGeological Survey (U.S.) and D. J. Ackerman. Potentiometric Surfaces of the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, Spring 1972 and 1980. The Survey, 1989.
Warning: These citations may not always be 100% accurate.