@misc{indiciaef74a396feccd,
  title = {Palynological investigations in the Upper Cretaceous and Tertiary of the Mississippi Embayment region - V},
  author = {Robert H. Tschudy},
  year = {1973},
  doi = {10.3133/ofr73283},
  url = {https://pubs.usgs.gov/publication/ofr73283},
  note = {Source identifier: ofr73283}
}