@misc{indiciae3966505e3c77,
  title = {Water-quality data from selected surface coal mines in West Virginia},
  author = {R.L. Bragg},
  year = {1985},
  doi = {10.3133/ofr85405},
  url = {https://pubs.usgs.gov/publication/ofr85405},
  note = {Source identifier: ofr85405}
}