@misc{indiciaefa0033d62477,
  title = {Federal coal resource occurrence and federal coal development potential maps of the McCurtain quadrangle, Haskell and Le Flore Counties, Oklahoma},
  author = {J. L. Querry and Geological Services of Tulsa},
  year = {1985},
  doi = {10.3133/ofr79493},
  url = {https://pubs.usgs.gov/publication/ofr79493},
  note = {Source identifier: ofr79493}
}