@misc{indiciae06888fdd4019,
  title = {Coal resources of the Heliotrope Mountain Quadrangle, Sanpete and Sevier counties, Utah},
  author = {AAA Engineering and Drafting Inc.},
  year = {1979},
  doi = {10.3133/ofr791006},
  url = {https://pubs.usgs.gov/publication/ofr791006},
  note = {Source identifier: ofr791006}
}