@misc{indiciae4c409a9a9f31,
  title = {Federal coal resource occurrence maps of the Kin Klizhin Ruins 7 1/2-minute quadrangle, San Juan and McKinley Counties, New Mexico},
  author = {Berge Exploration Inc.},
  year = {1979},
  doi = {10.3133/ofr791047},
  url = {https://pubs.usgs.gov/publication/ofr791047},
  note = {Source identifier: ofr791047}
}