@misc{indiciae749b10c7cff6,
  title = {Cambrian rocks of the Pioche mining district, Nevada: With a section on Pioche shale faunules},
  author = {Charles Warren Merriam and Allison R. Palmer},
  year = {1964},
  doi = {10.3133/pp469},
  url = {https://pubs.usgs.gov/publication/pp469},
  note = {Source identifier: pp469}
}