@misc{indiciaebfc2fc3d5f21,
  title = {Coal references index for the Navajo Indian Reservation, Arizona, New Mexico, and Utah},
  author = {J. D. Bliss},
  year = {1982},
  doi = {10.3133/ofr82281},
  url = {https://pubs.usgs.gov/publication/ofr82281},
  note = {Source identifier: ofr82281}
}