@misc{indiciae8b8a4393e10e,
  title = {Water Resources Data, Illinois, Water Year 1991, Vol. 2},
  author = {T.E. Richards and P.D. Hayes and D. J. Sullivan},
  year = {1992},
  doi = {10.3133/wdril912},
  url = {https://pubs.usgs.gov/publication/wdrIL912},
  note = {Source identifier: wdrIL912}
}