http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Water-level maps of the Mississippi River Valley alluvial aquifer in eastern Arkansas, 1987
Water level maps of the Mississippi River Valley alluvial aquifer in eastern Arkansas, 1987
Arkansas Soil and Water Conservation Commission
Relief shown by contours and spot heights.
"Prepared in cooperation with the Arkansas Geological Commission, Arkansas Soil and Water Conservation Commission, local conservation districts, and the U.S. Soil Conservation Service."
Includes text, bibliographical references, hydrographs and location map.
Water-resources investigations report ; 90-4089