@misc{indiciae847ddaf81501,
  title = {Preliminary geologic map of the Calaveras Reservoir Quadrangle, Alameda and Santa Clara counties, California},
  author = {T. W. Dibblee},
  year = {1973},
  doi = {10.3133/ofr7358},
  url = {https://pubs.usgs.gov/publication/ofr7358},
  note = {Source identifier: ofr7358}
}