@misc{indiciaeae8f1761b141,
  title = {Federal coal resource occurrence and coal development potential maps of the Orphan Annie 7 1/2-minute quadrangle, McKinley County, New Mexico},
  author = {Berge Exploration Inc.},
  year = {1979},
  doi = {10.3133/ofr791041},
  url = {https://pubs.usgs.gov/publication/ofr791041},
  note = {Source identifier: ofr791041}
}