@misc{indiciaeea58db13f321,
  title = {The correlation of the Vicksburg group and the Foraminifera of the Vicksburg group},
  author = {C. Wythe Cooke and Joseph A. Cushman},
  year = {1923},
  doi = {10.3133/pp133},
  url = {https://pubs.usgs.gov/publication/pp133},
  note = {Source identifier: pp133}
}