@misc{indiciae53dcc9815343,
  title = {North Dakota ground-water quality},
  author = {George Garklavs and Rick Nelson},
  year = {1987},
  doi = {10.3133/ofr87744},
  url = {https://pubs.usgs.gov/publication/ofr87744},
  note = {Source identifier: ofr87744}
}