@misc{indiciaefaa92fb66c42,
  title = {Coal deposits of the Hedstrom Lake area, McCone, Garfield, Prairie, Custer, and Rosebud counties, Montana},
  author = {Herbert Wincentsen},
  year = {1979},
  doi = {10.3133/ofr791578},
  url = {https://pubs.usgs.gov/publication/ofr791578},
  note = {Source identifier: ofr791578}
}