@misc{indiciae7cf722dee68c,
  title = {Southern California Borderland oblique map of the northwestern part},
  author = {Tau Rho Alpha},
  year = {1978},
  doi = {10.3133/ofr78967},
  url = {https://pubs.usgs.gov/publication/ofr78967},
  note = {Source identifier: ofr78967}
}