@misc{indiciae7212b5948df1,
  title = {Summary appraisals of the nation's ground-water resources – Great Lakes region},
  author = {William G. Weist},
  year = {1978},
  doi = {10.3133/pp813j},
  url = {https://pubs.usgs.gov/publication/pp813J},
  note = {Source identifier: pp813J}
}