@misc{indiciae2bdddd489c46,
  title = {Preliminary report on the geology of the near-surface coal beds in the Knife River area, North Dakota},
  author = {Ronald Law},
  year = {1977},
  doi = {10.3133/ofr77481},
  url = {https://pubs.usgs.gov/publication/ofr77481},
  note = {Source identifier: ofr77481}
}