@misc{indiciaed32f3bb7ee37,
  title = {Preliminary geologic map of the Naschitti quadrangle, San Juan and McKinley Counties, New Mexico},
  author = {Robert Brett O'Sullivan},
  year = {1955},
  doi = {10.3133/coal31},
  url = {https://pubs.usgs.gov/publication/coal31},
  note = {Source identifier: coal31}
}