@misc{indiciae45bb6b0ba284,
  title = {Geology of the San Francisco North quadrangle, California},
  author = {J. Schlocker and M. G. Bonilla and D.H. Radbruch},
  year = {1958},
  doi = {10.3133/i272},
  url = {https://pubs.usgs.gov/publication/i272},
  note = {Source identifier: i272}
}