@misc{indiciaed89871b93138,
  title = {Lower Pliocene mollusks and echinoids from the Los Angeles Basin, California, and their inferred environment},
  author = {W. P. Woodring},
  year = {1938},
  doi = {10.3133/pp190},
  url = {https://pubs.usgs.gov/publication/pp190},
  note = {Source identifier: pp190}
}