@misc{indiciae86783f3d3f04,
  title = {Hydrogeologic and ground-water-quality data for Belvidere, Illinois, and vicinity, 2001–02},
  author = {P. C. Mills and R.T. Kay},
  year = {2003},
  doi = {10.3133/ofr03206},
  url = {https://pubs.usgs.gov/publication/ofr03206},
  note = {Source identifier: ofr03206}
}