@misc{indiciaea97044d98684,
  title = {Radiocarbon dating loess deposits in the Mississippi Valley using terrestrial gastropod shells (Polygyridae, Helicinidae, and Discidae)},
  author = {Jeffery S. Pigati and John P. McGeehin and Daniel Muhs and David A. Grimley and Jeffrey C. Nekola},
  year = {2014},
  doi = {10.1016/j.aeolia.2014.10.005},
  url = {https://pubs.usgs.gov/publication/70134344},
  note = {Source identifier: 70134344}
}