@misc{indiciaef78e35bb1ee7,
  title = {Coal resources of New Mexico},
  author = {Charles Brian Read and R. T. Duffner and G. H. Wood and A.D. Zapp},
  year = {1950},
  doi = {10.3133/cir89},
  url = {https://pubs.usgs.gov/publication/cir89},
  note = {Source identifier: cir89}
}