@misc{indiciae5ea58d509225,
  title = {Plutonic rocks of the Klamath Mountains, California and Oregon},
  author = {P.E. Hotz},
  year = {1971},
  doi = {10.3133/pp684b},
  url = {https://pubs.usgs.gov/publication/pp684B},
  note = {Source identifier: pp684B}
}