@misc{indiciaec2391e4a0183,
  title = {The Bishop ash bed (middle Pleistocene) and some older (Pliocene and Pleistocene) chemically and mineralogically similar ash beds in California, Nevada, and Utah},
  author = {Glen Arthur Izett and J. D. Obradovich and Mehnert},
  year = {1988},
  doi = {10.3133/b1675},
  url = {https://pubs.usgs.gov/publication/b1675},
  note = {Source identifier: b1675}
}