@misc{indiciae773a742b8766,
  title = {Geologic map and coal sections of the Quietus Quadrangle, Big Horn and Powder River counties, Montana},
  author = {W.C. Culbertson and M.C. Klett},
  year = {1979},
  doi = {10.3133/mf1087},
  url = {https://pubs.usgs.gov/publication/mf1087},
  note = {Source identifier: mf1087}
}