@misc{indiciae2eea920a3f68,
  title = {Gravity and magnetic studies of The Geysers-Clear Lake geothermal region, California},
  author = {William F. Isherwood},
  year = {1975},
  doi = {10.3133/ofr75368},
  url = {https://pubs.usgs.gov/publication/ofr75368},
  note = {Source identifier: ofr75368}
}