@misc{indiciaef5f484e889f2,
  title = {A procedure for predicting concentrations of dissolved solids and sulfate ion in streams draining areas strip mined for coal},
  author = {Hugh E. Bevans},
  year = {1980},
  doi = {10.3133/ofr80764},
  url = {https://pubs.usgs.gov/publication/ofr80764},
  note = {Source identifier: ofr80764}
}