TY - GEN A2 - Pettijohn, Robert A. A2 - Busby, John F. A2 - Layman, Thomas B. AU - Geological Survey (U.S.), cartographer. CY - Austin, Texas L2 - https://purl.fdlp.gov/GPO/gpo143207 LA - English PB - [U.S. Department of the Interior, U.S. Geological Survey] PP - Austin, Texas PY - 1993 TI - Properties and chemical constituents in ground water from the upper Claiborne Aquifer, Gulf Coast regional aquifer systems, south-central United States ER -