@misc{indiciae236a183a6ceb,
  title = {Photogeologic map of the Lees Ferry SE quadrangle, Coconino County, Arizona},
  author = {Kathleen McQueen},
  year = {1956},
  doi = {10.3133/i169},
  url = {https://pubs.usgs.gov/publication/i169},
  note = {Source identifier: i169}
}