@misc{indiciaeecc3f342041f,
  title = {Water resources data for Montana, 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/wdrmt722},
  url = {https://pubs.usgs.gov/publication/wdrMT722},
  note = {Source identifier: wdrMT722}
}