@misc{indiciaee97049444ed6,
  title = {Water-resources activities in Illinois, 1986},
  author = {M. L. Garrelts},
  year = {1987},
  doi = {10.3133/ofr8739},
  url = {https://pubs.usgs.gov/publication/ofr8739},
  note = {Source identifier: ofr8739}
}