@misc{indiciae790b31089b2e,
  title = {1999 Resource assessment of selected Tertiary coal beds and zones in the northern Rocky Mountains and Great Plains region},
  author = {Fort Union Coal Assessment Team and USGS Energy Resources Team},
  year = {1999},
  doi = {10.3133/pp1625a},
  url = {https://pubs.usgs.gov/publication/pp1625A},
  note = {Source identifier: pp1625A}
}