TY - RPRT TI - Geohydrologic systems in Kansas: Physical framework of the lower aquifer unit in the western interior plains aquifer system AU - C. V. Hansen AU - J. M. Spinazola AU - R. J. Wolf PY - 1994 DO - 10.3133/ha722f UR - https://pubs.usgs.gov/publication/ha722F ID - ha722F ER -