@misc{indiciae33c400ad06fa,
  title = {Geologic map of the Newark 7.5 minute Quadrangle, Alameda County, California},
  author = {Edward J. Helley and D. M. Miller},
  year = {1992},
  doi = {10.3133/ofr92312},
  url = {https://pubs.usgs.gov/publication/ofr92312},
  note = {Source identifier: ofr92312}
}