@misc{indiciae9feeea933cc6,
  title = {Photogeologic map of Shanto Spring 1 quadrangle, Navajo County, Arizona},
  author = {W. A. Fischer and W. H. Condon},
  year = {1953},
  doi = {10.3133/ofr5368},
  url = {https://pubs.usgs.gov/publication/ofr5368},
  note = {Source identifier: ofr5368}
}