@misc{indiciae04007c65ae9f,
  title = {Three deposits of strippable lignite west of the Yellowstone River, Montana},
  author = {William Craven Culbertson},
  year = {1954},
  doi = {10.3133/b995h},
  url = {https://pubs.usgs.gov/publication/b995H},
  note = {Source identifier: b995H}
}