@misc{indiciaeac8b9dcbce7c,
  title = {Water resources of Walworth County, South Dakota},
  author = {Jack Kume and Lewis Howells},
  year = {1987},
  doi = {10.3133/wri854015},
  url = {https://pubs.usgs.gov/publication/wri854015},
  note = {Source identifier: wri854015}
}