@misc{indiciae59b2a38d92b1,
  title = {Hydrogeologic and water-quality characteristics of the Upper Carbonate aquifer, Southeast Minnesota},
  author = {J. F. Ruhl and R. J. Wolf},
  year = {1983},
  doi = {10.3133/wri844150},
  url = {https://pubs.usgs.gov/publication/wri844150},
  note = {Source identifier: wri844150}
}