@misc{indiciae43496222d7af,
  title = {Water resources data for South Dakota, water year 1972; Part 2, Water quality records},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1973},
  doi = {10.3133/wdrsd722},
  url = {https://pubs.usgs.gov/publication/wdrSD722},
  note = {Source identifier: wdrSD722}
}