TY - RPRT TI - Ground-water-quality assessment of the Central Oklahoma Aquifer, Oklahoma: Geochemical and geohydrologic investigations AU - David L. Parkhurst AU - Scott C. Christenson AU - George N. Breit PY - 1993 DO - 10.3133/ofr92642 UR - https://pubs.usgs.gov/publication/ofr92642 ID - ofr92642 ER -