@misc{indiciae4aec5f6abce6,
  title = {Geologic map of the Villanueva quadrangle, San Miguel County, New Mexico},
  author = {Ross B. Johnson},
  year = {1970},
  doi = {10.3133/gq869},
  url = {https://pubs.usgs.gov/publication/gq869},
  note = {Source identifier: gq869}
}