@misc{indiciaeda8dfbd0ef23,
  title = {Ground-water quality in the Nemaha Natural Resources District, southeastern Nebraska, 1989},
  author = {D. Q. Tanner and G. V. Steele},
  year = {1991},
  doi = {10.3133/wri904184},
  url = {https://pubs.usgs.gov/publication/wri904184},
  note = {Source identifier: wri904184}
}