@misc{indiciaecd47b090e3f7,
  title = {Preliminary geologic map of the Honker Bay Quadrangle, Solano and Contra Costa counties, California},
  author = {T. W. Dibblee},
  year = {1980},
  doi = {10.3133/ofr802009},
  url = {https://pubs.usgs.gov/publication/ofr802009},
  note = {Source identifier: ofr802009}
}