TY - RPRT TI - Geohydrologic systems in Kansas — Geohydrology of the lower aquifer unit in the western interior plains aquifer system AU - L. J. Combs AU - Cristi V. Hansen AU - R. J. Wolf PY - 1993 DO - 10.3133/ha722i UR - https://pubs.usgs.gov/publication/ha722I ID - ha722I ER -