@misc{indiciae4c0b42f345c0,
  title = {Coal resource occurrence map of the Seven Lakes NW quadrangle, McKinley County, New Mexico},
  author = {Berge Exploration Inc.},
  year = {1979},
  doi = {10.3133/ofr791123},
  url = {https://pubs.usgs.gov/publication/ofr791123},
  note = {Source identifier: ofr791123}
}