@misc{indiciae3d79e5ce5d69,
  title = {Borate deposits in Ventura County, California},
  author = {H. S. Gale},
  year = {1914},
  doi = {10.3133/b540o},
  url = {https://pubs.usgs.gov/publication/b540O},
  note = {Source identifier: b540O}
}