@misc{indiciaef2bcc4115668,
  title = {Evaluation and simulation of chemical-quality data for five Montana sampling stations},
  author = {Leonard R. Frost},
  year = {1974},
  doi = {10.3133/ofr741037},
  url = {https://pubs.usgs.gov/publication/ofr741037},
  note = {Source identifier: ofr741037}
}