@misc{indiciae65eb05d2e1e8,
  title = {Preliminary results of coal exploratory drilling in the Book Cliffs coal field, Grand County, Utah},
  author = {James Louis Gualtieri},
  year = {1981},
  doi = {10.3133/ofr8143},
  url = {https://pubs.usgs.gov/publication/ofr8143},
  note = {Source identifier: ofr8143}
}