@misc{indiciae82c312048cb3,
  title = {Preliminary geologic map and structural sections of the central Mayacmas Mountains and The Geysers steam field, Sonoma, Lake, and Mendocino counties, California},
  author = {Robert J. McLaughlin},
  year = {1978},
  doi = {10.3133/ofr78389},
  url = {https://pubs.usgs.gov/publication/ofr78389},
  note = {Source identifier: ofr78389}
}