@misc{indiciaea469d238e38b,
  title = {Areal studies aid protection of ground-water quality in Illinois, Indiana, and Wisconsin},
  author = {P.C. Mills and Robert T. Kay and Timothy A. Brown and Douglas J. Yeskis},
  year = {1999},
  doi = {10.3133/wri984143},
  url = {https://pubs.usgs.gov/publication/wri984143},
  note = {Source identifier: wri984143}
}