@misc{indiciae9651ed953178,
  title = {Correlation of late Cenozoic tuffs in the central Coast Ranges of California by means of trace and minor-element chemistry},
  author = {Andrei M. Sarna-Wojcicki},
  year = {1976},
  doi = {10.3133/pp972},
  url = {https://pubs.usgs.gov/publication/pp972},
  note = {Source identifier: pp972}
}