@misc{indiciae095728a2400f,
  title = {Index maps for large-scale vertical black and white aerial photographs along the San Andreas Fault, California},
  author = {Charles W. Hedel and H. A. Villalobos},
  year = {1979},
  doi = {10.3133/ofr79287},
  url = {https://pubs.usgs.gov/publication/ofr79287},
  note = {Source identifier: ofr79287}
}