@misc{indiciae5fa5fa5ae521,
  title = {Ground water in Minnesota},
  author = {Gerald F. Lindholm and Ralph F. Norvitch},
  year = {1976},
  doi = {10.3133/ofr76354},
  url = {https://pubs.usgs.gov/publication/ofr76354},
  note = {Source identifier: ofr76354}
}