@misc{indiciae4b1d9a7fd508,
  title = {Radar images - San Francisco volcanic field, Arizona-A preliminary evaluation},
  author = {G. G. Schaber},
  year = {1967},
  doi = {10.3133/ofr67193},
  url = {https://pubs.usgs.gov/publication/ofr67193},
  note = {Source identifier: ofr67193}
}