@misc{indiciae95f649539bbc,
  title = {Hydrology of area 12, Eastern Coal Province, West Virginia},
  author = {Theodore A. Ehlke},
  year = {1982},
  doi = {10.3133/ofr81902},
  url = {https://pubs.usgs.gov/publication/ofr81902},
  note = {Source identifier: ofr81902}
}