@misc{indiciae399ad98172c8,
  title = {A preliminary bibliography for the Clear Lake-Geysers area, California},
  author = {David P. Adam},
  year = {1977},
  doi = {10.3133/ofr77489},
  url = {https://pubs.usgs.gov/publication/ofr77489},
  note = {Source identifier: ofr77489}
}