@misc{indiciae622196be395c,
  title = {Stratigraphic nomenclature in reports of the U.S. Geological Survey},
  author = {George V. Cohee},
  year = {1974},
  doi = {10.3133/70047747},
  url = {https://pubs.usgs.gov/publication/70047747},
  note = {Source identifier: 70047747}
}