@misc{indiciaebb8d30b2ce02,
  title = {Photogeologic map of the Lees Ferry NW quadrangle, Coconino County, Arizona},
  author = {Kathleen McQueen},
  year = {1957},
  doi = {10.3133/i196},
  url = {https://pubs.usgs.gov/publication/i196},
  note = {Source identifier: i196}
}