TY - RPRT TI - Properties and chemical constituents in ground water from the middle Wilcox aquifer, Gulf Coast regional aquifer systems, south-central United States AU - Robert A. Pettijohn AU - John F. Busby AU - Jeffery D. Beckman PY - 1993 DO - 10.3133/wri934070 UR - https://pubs.usgs.gov/publication/wri934070 ID - wri934070 ER -