@misc{indiciae736cf23eafbe,
  title = {Federally owned coal and Federal lands in the Northern and Central Appalachian Basin coal regions},
  author = {S.J. Tewalt},
  year = {2002},
  doi = {10.3133/fs01302},
  url = {https://pubs.usgs.gov/publication/fs01302},
  note = {Source identifier: fs01302}
}