@misc{indiciae9a590ff8d04b,
  title = {Availability of low-sulphur coal in Greenbrier County, West Virginia},
  author = {Kenneth John Englund and John F. Windolph},
  year = {1972},
  doi = {10.3133/ofr72113},
  url = {https://pubs.usgs.gov/publication/ofr72113},
  note = {Source identifier: ofr72113}
}