@misc{indiciae497caf03e9a2,
  title = {Hydrogeology of the glacial drift in the Skunk Creek-Lake Madison drainage basin, southeastern South Dakota},
  author = {M. J. Ellis and D. G. Adolphson},
  year = {1965},
  doi = {10.3133/ha195},
  url = {https://pubs.usgs.gov/publication/ha195},
  note = {Source identifier: ha195}
}