@misc{indiciae972b738d80f6,
  title = {Preliminary geologic map of Santa Maria 30' x 60' quadrangle, California},
  year = {1992},
  doi = {10.3133/ofr92189},
  url = {https://pubs.usgs.gov/publication/ofr92189},
  note = {Source identifier: ofr92189}
}