@misc{indiciae38a3bc8030f8,
  title = {Estimated relative abundance of landslides in the San Francisco Bay region, California},
  author = {D. H. Radbruch-Hall and C. M. Wentworth},
  year = {1971},
  doi = {10.3133/ofr71231},
  url = {https://pubs.usgs.gov/publication/ofr71231},
  note = {Source identifier: ofr71231}
}