@misc{indiciaed22ea89e01c0,
  title = {Catalog of pre-Cretaceous geologic drill-hole data from the Upper Mississippi Embayment; a revision and update of Open-file report 90-260},
  author = {R. L. Dart},
  year = {1992},
  doi = {10.3133/ofr92685},
  url = {https://pubs.usgs.gov/publication/ofr92685},
  note = {Source identifier: ofr92685}
}