@misc{indiciae5362af1fc88c,
  title = {Hydrogeologic framework of the Midwestern Basins and Arches region in parts of Indiana, Ohio, Michigan, and Illinois},
  author = {George D. Casey},
  year = {1996},
  doi = {10.3133/pp1423b},
  url = {https://pubs.usgs.gov/publication/pp1423B},
  note = {Source identifier: pp1423B}
}