@misc{indiciae80b9c6efc5e2,
  title = {Preliminary report on landslides in a part of the Orinda Formation, Contra Costa County, California},
  author = {Dorothy Hill Radbruch and Louise M. Weiler},
  year = {1963},
  doi = {10.3133/ofr63112},
  url = {https://pubs.usgs.gov/publication/ofr63112},
  note = {Source identifier: ofr63112}
}