@misc{indiciae48794b00c201,
  title = {Preliminary results of coal exploratory drilling in the Book Cliffs coal region, Garfield County, Colorado, and Grand County, Utah},
  author = {James Louis Gualtieri},
  year = {1979},
  doi = {10.3133/ofr79999},
  url = {https://pubs.usgs.gov/publication/ofr79999},
  note = {Source identifier: ofr79999}
}