@misc{indiciaef73c3e8db3e5,
  title = {Interpretation; Apollo 9 photography of parts of southern Arizona and southern New Mexico},
  author = {J. Robert Owen and Lynn M. Shown},
  year = {1973},
  doi = {10.3133/ofr73215},
  url = {https://pubs.usgs.gov/publication/ofr73215},
  note = {Source identifier: ofr73215}
}