@misc{indiciae12669f50cdfc,
  title = {Hydrology of area 18, Eastern Coal Province, Tennessee},
  author = {V.J. May},
  year = {1981},
  doi = {10.3133/ofr81492},
  url = {https://pubs.usgs.gov/publication/ofr81492},
  note = {Source identifier: ofr81492}
}