@misc{indiciaeacef1626bd7e,
  title = {Sensitivity of ground water to contamination in Lawrence County, South Dakota},
  author = {Larry D. Putnam},
  year = {2000},
  doi = {10.3133/wri004103},
  url = {https://pubs.usgs.gov/publication/wri004103},
  note = {Source identifier: wri004103}
}