@misc{indiciae4ec86c0a666c,
  title = {Chemical analyses, correlations, and ages of upper Pliocene and Pleistocene ash layers of east-central and Southern California},
  author = {A.M. Sarna-Wojcicki and H. R. Bowman and C.E. Meyer and P.C. Russell and M.J. Woodward and Gail McCoy and J.J. Rowe and P. A. Baedecker and Frank Asaro and Helen Michael},
  year = {1984},
  doi = {10.3133/pp1293},
  url = {https://pubs.usgs.gov/publication/pp1293},
  note = {Source identifier: pp1293}
}