TY - RPRT TI - Shallow ground-water quality of selected land-use/aquifer settings in the South Platte River basin, Colorado and Nebraska, 1993-95 AU - B. W. Bruce AU - P.B. McMahon PY - 1998 DO - 10.3133/wri974229 UR - https://pubs.usgs.gov/publication/wri974229 ID - wri974229 ER -