@misc{indiciae973be89ec102,
  title = {Observation-well network in Illinois, 1984},
  author = {D. C. Voelker},
  year = {1986},
  doi = {10.3133/ofr86416w},
  url = {https://pubs.usgs.gov/publication/ofr86416W},
  note = {Source identifier: ofr86416W}
}