@misc{indiciaea09375843bad,
  title = {Paleomagnetism and potassium-argon ages of the Sonoma Volcanics, California},
  author = {Edward A. Mankinen},
  year = {1972},
  doi = {10.1130/0016-7606(1972)83[2063:papaot]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70197181},
  note = {Source identifier: 70197181}
}