@misc{indiciae1f0a08a1cb6e,
  title = {Maps showing geochemical analyses of the Ishi, Mill Creek, Polk Springs, and Butt Mountain further planning areas, Tehama and Plumas counties, California},
  author = {Jocelyn A. Peterson and Robin Bradley and K. A. Johnson},
  year = {1982},
  doi = {10.3133/mf1340b},
  url = {https://pubs.usgs.gov/publication/mf1340B},
  note = {Source identifier: mf1340B}
}