@misc{indiciae66d99397b3ba,
  title = {Preliminary geologic map of the Clear Lake volcanic field, Lake County, California},
  author = {B. Carter Hearn and Julie M. Donnelly and Fraser E. Goff},
  year = {1975},
  doi = {10.3133/ofr75391},
  url = {https://pubs.usgs.gov/publication/ofr75391},
  note = {Source identifier: ofr75391}
}