@misc{indiciaebb61a6431234,
  title = {Geologic map of the Morro Bay South and Port San Luis quadrangles, San Luis Obispo County, California},
  author = {C.A. Hall},
  year = {1973},
  doi = {10.3133/mf511},
  url = {https://pubs.usgs.gov/publication/mf511},
  note = {Source identifier: mf511}
}