@misc{indiciae8aff1c44152a,
  title = {Water-quality trends for the Cheyenne and Moreau Rivers, Cheyenne River Indian Reservation, South Dakota, 1972-94},
  author = {A.J. Heakin},
  year = {1998},
  doi = {10.3133/wri984092},
  url = {https://pubs.usgs.gov/publication/wri984092},
  note = {Source identifier: wri984092}
}