@misc{indiciaebad51a7ac753,
  title = {Preliminary geologic map of the San Francisco South 7.5' quadrangle and part of the Hunters Point 7.5' quadrangle, San Francisco Bay area, California: A digital database},
  author = {M. G. Bonilla},
  year = {1998},
  doi = {10.3133/ofr98354},
  url = {https://pubs.usgs.gov/publication/ofr98354},
  note = {Source identifier: ofr98354}
}