1. Flow paths in the Edwards aquifer, northern Medina and northeastern Uvalde Counties, Texas, based on hydrologic identification and geochemical characterization and simulation Author/Creator: Clark, Allan K. Publication/Creation: Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey, 2006 Format: Book Access & Availability: Loading
2. Geologic framework and hydrogeologic characteristics of the Edwards aquifer, Uvalde County, Texas Author/Creator: Clark, Allan K. Publication/Creation: Denver, CO : U.S. Geological Survey, Information Services [distributor]. Format: Book Access & Availability: Loading
3. Geologic framework and hydrogeologic features of the Glen Rose Limestone, Camp Bullis training site, Bexar County, Texas Author/Creator: Clark, Allan K. Publication/Creation: Denver, CO : U.S. Geological Survey, Information Services [distributor]. Format: Book Access & Availability: Loading