@misc{indiciae8010e3f1e399,
  title = {Calcite deposits in Imperial and San Diego counties, California: Calcite deposits near Truckhaven, Imperial County, California},
  author = {James Gilluly},
  year = {1977},
  doi = {10.3133/ofr77685a},
  url = {https://pubs.usgs.gov/publication/ofr77685A},
  note = {Source identifier: ofr77685A}
}