@misc{indiciaefe3ff47192e7,
  title = {Appraisal of data for ground-water quality in Nebraska},
  author = {R. A. Engberg},
  year = {1984},
  doi = {10.3133/wsp2245},
  url = {https://pubs.usgs.gov/publication/wsp2245},
  note = {Source identifier: wsp2245}
}