@misc{indiciae03b61cf12143,
  title = {Geology of northeast margin of San Gabriel Basin, Los Angeles County, California},
  author = {John Sewell Shelton},
  year = {1946},
  doi = {10.3133/om63},
  url = {https://pubs.usgs.gov/publication/om63},
  note = {Source identifier: om63}
}