@misc{indiciae519829a0f196,
  title = {Techniques used in mine-water problems of the east Tennessee zinc district},
  author = {Deane Frederick Kent},
  year = {1950},
  doi = {10.3133/cir71},
  url = {https://pubs.usgs.gov/publication/cir71},
  note = {Source identifier: cir71}
}