@misc{indiciaef165974df1e9,
  title = {Geology of San Francisco},
  author = {Russell W. Graymer and Robert Givler and John Baldwin and William Lettis and Samuel Johnson and H. Gary Greene and Peter Dartnell},
  year = {2018},
  url = {https://pubs.usgs.gov/publication/70200007},
  note = {Source identifier: 70200007}
}