@misc{indiciae8fc6637a7f04,
  title = {Quicksilver deposits of the Mount Diablo district, Contra Costa County, California},
  author = {Clyde Polhemus Ross},
  year = {1940},
  doi = {10.3133/b922b},
  url = {https://pubs.usgs.gov/publication/b922B},
  note = {Source identifier: b922B}
}