TY - RPRT TI - Geohydrologic systems in Kansas: Physical framework of the upper aquifer unit in the western interior plains aquifer system AU - Cristi V. Hansen AU - Joseph M. Spinazola AU - E. J. Underwood AU - R. J. Wolf PY - 1992 DO - 10.3133/ha722d UR - https://pubs.usgs.gov/publication/ha722D ID - ha722D ER -