@misc{indiciae11e29c18355a,
  title = {Geology of the Pulga and Bucks Lake quadrangles, Butte and Plumas counties, California},
  author = {Anna Martta Hietanen},
  year = {1973},
  doi = {10.3133/pp731},
  url = {https://pubs.usgs.gov/publication/pp731},
  note = {Source identifier: pp731}
}