@misc{indiciae4945af212d20,
  title = {Stratigraphy of the Lower and Middle(?) Triassic Union Wash Formation, east-central California},
  author = {Paul Stone and Calvin H. Stevens and M.J. Orchard},
  year = {1991},
  doi = {10.3133/b1928},
  url = {https://pubs.usgs.gov/publication/b1928},
  note = {Source identifier: b1928}
}