@misc{indiciae45f78c1abc6f,
  title = {Coal geology of the Garrison area, McLean County, North Dakota},
  author = {Sally Cook},
  year = {1981},
  doi = {10.3133/ofr8122},
  url = {https://pubs.usgs.gov/publication/ofr8122},
  note = {Source identifier: ofr8122}
}