@misc{indiciaed80a6b5ea223,
  title = {Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1963},
  author = {G. V. Cohee and W.S. West},
  year = {1965},
  doi = {10.3133/b1194a},
  url = {https://pubs.usgs.gov/publication/b1194A},
  note = {Source identifier: b1194A}
}