@misc{indiciaeee187789b478,
  title = {Origin of reverse-graded bedding in air-fall pumice, Coso Range, California},
  author = {W. A. Duffield and C. R. Bacon and G.R. Roquemore},
  year = {1979},
  doi = {10.1016/0377-0273(79)90031-3},
  url = {https://pubs.usgs.gov/publication/70012501},
  note = {Source identifier: 70012501}
}