@misc{indiciae2af55e3f49b1,
  title = {Progress report on chronostratigraphic and paleoclimatic studies, Middle Mississippi River Valley, eastern Arkansas and western Tennessee},
  year = {1993},
  doi = {10.3133/ofr93273},
  url = {https://pubs.usgs.gov/publication/ofr93273},
  note = {Source identifier: ofr93273}
}