@misc{indiciaed02d73c7b01a,
  title = {Diagenesis of tuffs in the Barstow Formation, Mud Hills, San Bernardino County, California},
  author = {Richard A. Sheppard and Arthur J. Gude},
  year = {1969},
  doi = {10.3133/pp634},
  url = {https://pubs.usgs.gov/publication/pp634},
  note = {Source identifier: pp634}
}