@misc{indiciaeeede4c05b10d,
  title = {Geologic map of Mount Laguna 7 1/2' quadrangle, San Diego County, California},
  author = {Victoria R. Todd},
  year = {1979},
  doi = {10.3133/ofr79862},
  url = {https://pubs.usgs.gov/publication/ofr79862},
  note = {Source identifier: ofr79862}
}