@misc{indiciae5906b47232b5,
  title = {Data-base system for northern Midwest regional aquifer-system analysis},
  author = {A.L. Kontis and Richard J. Mandle},
  year = {1980},
  doi = {10.3133/wri80104},
  url = {https://pubs.usgs.gov/publication/wri80104},
  note = {Source identifier: wri80104}
}