TY - RPRT TI - Use of water chemistry, isotopes, and chlorofluorocarbons to investigate the sources of ground water beneath Loup City, central Nebraska, 2000 AU - G. V. Steele AU - F.E. Harvey PY - 2002 DO - 10.3133/wri024049 UR - https://pubs.usgs.gov/publication/wri024049 ID - wri024049 ER -