@misc{indiciaea7f03fb738d0,
  title = {New molluscan assemblages from the upper member of the Twin River Formation, western Washington: Significance in Neogene chronostratigraphy},
  author = {Warren O. Addicott},
  year = {1976},
  url = {https://pubs.usgs.gov/publication/70232790},
  note = {Source identifier: 70232790}
}