@misc{indiciae923c37228fe1,
  title = {Reconnaissance photointerpretation map of landslides in parts of the Hopland, Kelseyville, and Lower Lake 15-minute quadrangles, Sonoma County, California},
  author = {V. A. Frizzell},
  year = {1974},
  doi = {10.3133/mf594},
  url = {https://pubs.usgs.gov/publication/mf594},
  note = {Source identifier: mf594}
}