@misc{indiciaeffc24ca4006b,
  title = {Water resources data for Montana, water year 1973; Part 2. Water quality records},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1975},
  doi = {10.3133/wdrmt732},
  url = {https://pubs.usgs.gov/publication/wdrMT732},
  note = {Source identifier: wdrMT732}
}