TY - GEN A2 - Pettijohn, Robert A. A2 - Busby, John F. A2 - Beckman, Jeffery D. A2 - National Regional Aquifer Systems Analysis Program (U.S.) AU - Geological Survey (U.S.), cartographer. CY - Austin, Texas L2 - https://purl.fdlp.gov/GPO/gpo142815 LA - English PB - [U.S. Department of the Interior, U.S. Geological Survey] PP - Austin, Texas PY - 1992 TI - Properties and chemical constituents in ground water from the Mississippi River Valley alluvial aquifer and permeable zone A (Holocene-upper Pleistocene deposits), south-central United States ER -