TY - RPRT TI - Hydrologic analysis of the High Plains aquifer system in Box Butte County, Nebraska AU - R. A. Pettijohn AU - Hsiu-Hsiung Chen PY - 1984 DO - 10.3133/wri844046 UR - https://pubs.usgs.gov/publication/wri844046 ID - wri844046 ER -