@misc{indiciae5a5905edccea,
  title = {Appraisal of data for ground-water quality in Nebraska},
  author = {R. A. Engberg},
  year = {1983},
  doi = {10.3133/ofr83128},
  url = {https://pubs.usgs.gov/publication/ofr83128},
  note = {Source identifier: ofr83128}
}