Potentiometric surface of the Sparta and Memphis aquifers in eastern Arkansas, April through July 1993
|Main Author:||Geological Survey (U.S.)|
|Other Authors:||Westerfield, Paul W., Arkansas Geological Commission.|
Little Rock, Ark. :
1 map ; 79 x 80 cm, on sheet 92 x 117 cm, folded in envelope 33 x 26 cm.
Water-resources investigations report ;