@misc{indiciae10fb78356888,
  title = {Minnesota ground-water quality},
  author = {D.R. Albin and L.B. Bruemmer},
  year = {1987},
  doi = {10.3133/ofr87733},
  url = {https://pubs.usgs.gov/publication/ofr87733},
  note = {Source identifier: ofr87733}
}