Cite
MLA (8th Edition)
Water-Level Maps of the Mississippi River Valley Alluvial Aquifer In Eastern Arkansas, 1986. U.S. Department of the Interior, U.S. Geological Survey, 1989.
APA (7th Edition)
Water-level maps of the Mississippi River Valley alluvial aquifer in eastern Arkansas, 1986. (1989). U.S. Department of the Interior, U.S. Geological Survey.
Chicago (17th Edition)
“Water-Level Maps of the Mississippi River Valley Alluvial Aquifer in Eastern Arkansas, 1986.” Little Rock, Arkansas: U.S. Department of the Interior, U.S. Geological Survey, 1989.