@misc{indiciae44cbdc880c6a,
  title = {Coal resource occurrence and coal development potential maps of the Wild Bill Creek quadrangle, Powder River County, Montana and Campbell County, Wyoming},
  author = {Colorado School of Mines Research Institute},
  year = {1979},
  doi = {10.3133/ofr79792},
  url = {https://pubs.usgs.gov/publication/ofr79792},
  note = {Source identifier: ofr79792}
}