@misc{indiciae7314f5370b97,
  title = {Photogeologic map of the Paria Plateau SE quadrangle, Coconino County, Arizona},
  author = {C. H. Marshall},
  year = {1956},
  doi = {10.3133/i191},
  url = {https://pubs.usgs.gov/publication/i191},
  note = {Source identifier: i191}
}