TY - RPRT TI - Hydrochemistry of aquifer systems and relation to regional flow patterns in Cretaceous and older rocks underlying Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming AU - Claud H. Baker AU - Robert B. Leonard PY - 1995 DO - 10.3133/wri944144 UR - https://pubs.usgs.gov/publication/wri944144 ID - wri944144 ER -