@misc{indiciaefafa39005754,
  title = {Preliminary report on the quality of water in abandoned zinc mines in northeastern Oklahoma and southeastern Kansas},
  author = {Stephen J. Playton and Robert Ellis Davis},
  year = {1977},
  doi = {10.3133/ofr77163},
  url = {https://pubs.usgs.gov/publication/ofr77163},
  note = {Source identifier: ofr77163}
}