@misc{indiciae3be6ec012c67,
  title = {Hydrogeologic data for the Mississippi Embayment of southeastern Missouri},
  author = {Richard R. Luckey and Dale L. Fuller},
  year = {1980},
  doi = {10.3133/ofr79421},
  url = {https://pubs.usgs.gov/publication/ofr79421},
  note = {Source identifier: ofr79421}
}