@misc{indiciae09acd41b4ade,
  title = {Stratigraphic distribution of some pollen types from the Campanian and lower Maestrichtian rocks (Upper Cretaceous) of the Middle Atlantic States},
  author = {Jack A. Wolfe},
  year = {1976},
  doi = {10.3133/pp977},
  url = {https://pubs.usgs.gov/publication/pp977},
  note = {Source identifier: pp977}
}