@misc{indiciae8308ed4f6232,
  title = {Geologic map of the Viejas Mountain Quadrangle, San Diego County, California},
  author = {Victoria R. Todd},
  year = {1978},
  doi = {10.3133/ofr78113},
  url = {https://pubs.usgs.gov/publication/ofr78113},
  note = {Source identifier: ofr78113}
}