@misc{indiciae1ebc82b866de,
  title = {A working bibliography for the Pliocene},
  author = {D.P. Adam and H.L. Dieffenbach and Michael McCormick},
  year = {1990},
  doi = {10.3133/ofr9081},
  url = {https://pubs.usgs.gov/publication/ofr9081},
  note = {Source identifier: ofr9081}
}