@misc{indiciae582db77b7670,
  title = {Reconnaissance of geology and ground water in the lower Grand River valley, South Dakota, with a section on Chemical quality of the ground water},
  author = {Paul C. Tychsen and R.C. Vorhis and Eugene R. Jochens},
  year = {1955},
  doi = {10.3133/wsp1298},
  url = {https://pubs.usgs.gov/publication/wsp1298},
  note = {Source identifier: wsp1298}
}