@misc{indiciaef10746ba14f1,
  title = {Changes in stratigraphic nomenclature by the U.S. Geological Survey, 1978},
  author = {Norman F. Sohl and W.B. Wright},
  year = {1979},
  doi = {10.3133/b1482a},
  url = {https://pubs.usgs.gov/publication/b1482A},
  note = {Source identifier: b1482A}
}