@misc{indiciae97b76988ddc9,
  title = {Landslides in the San Francisco South quadrangle, California},
  author = {Manuel G. Bonilla},
  year = {1960},
  doi = {10.3133/ofr6015},
  url = {https://pubs.usgs.gov/publication/ofr6015},
  note = {Source identifier: ofr6015}
}