@misc{indiciae762b73de028a,
  title = {Water quality of selected springs and public-supply wells, Pine Ridge Indian Reservation, South Dakota, 1992-97},
  author = {Allen J. Heakin},
  year = {2000},
  doi = {10.3133/wri994063},
  url = {https://pubs.usgs.gov/publication/wri994063},
  note = {Source identifier: wri994063}
}