@misc{indiciae693a7ae07355,
  title = {Chromite deposits near San Luis Obispo, California},
  author = {A. B. Griggs and C.T. Smith and T. P. Thayer and F. G. Wells},
  year = {1942},
  doi = {10.3133/ofr424},
  url = {https://pubs.usgs.gov/publication/ofr424},
  note = {Source identifier: ofr424}
}