@misc{indiciae8fdf13b1e5f0,
  title = {Geology, coal resources, and coal quality of the Prairie Dog Creek EMRIA Study Area, Rosebud County, Montana},
  author = {Laura N. Robinson and W.C. Culbertson and Ronald H. Affolter},
  year = {1981},
  doi = {10.3133/ofr811136},
  url = {https://pubs.usgs.gov/publication/ofr811136},
  note = {Source identifier: ofr811136}
}