@misc{indiciae56ffda43fe81,
  title = {Photogeologic map of Agathla Peak 7 quadrangle, Navajo County, Arizona},
  author = {R.G. Ray},
  year = {1953},
  doi = {10.3133/ofr53225},
  url = {https://pubs.usgs.gov/publication/ofr53225},
  note = {Source identifier: ofr53225}
}