1. Status of water levels and selected water-quality conditions in the Mississippi River Valley alluvial aquifer in eastern Arkansas, 1998 Author/Creator: Joseph, Robert L., author Publication/Creation: Little Rock, Arkansas : U.S. Department of the Interior, U.S. Geological Survey, 1999 Format: Book Access & Availability: Loading
2. Status of water levels and selected water-quality conditions in the Sparta and Memphis aquifers in eastern and south-central Arkansas, 1999 Author/Creator: Joseph, Robert L., author Publication/Creation: Little Rock, Arkansas : U.S. Geological Survey, 2000 Format: Book Access & Availability: Loading