@misc{indiciaeadf763068832,
  title = {Catalog of pre-Cretaceous geologic drill-hole data from the upper Mississippi Embayment},
  author = {R. L. Dart},
  year = {1992},
  doi = {10.3133/ofr90260},
  url = {https://pubs.usgs.gov/publication/ofr90260},
  note = {Source identifier: ofr90260}
}