@misc{indiciaeacd314b37f7e,
  title = {Coal resource occurrence and coal development potential maps of the Brandenberg quadrangle, Custer, Rosebud and Powder River Counties, Montana},
  author = {Colorado School of Mines Research Institute},
  year = {1979},
  doi = {10.3133/ofr794},
  url = {https://pubs.usgs.gov/publication/ofr794},
  note = {Source identifier: ofr794}
}