@misc{indiciaeb3e95e57611d,
  title = {Water-resources activities of the U.S. Geological Survey in Illinois, 1989},
  author = {M. L. Garrelts},
  year = {1990},
  doi = {10.3133/ofr89625},
  url = {https://pubs.usgs.gov/publication/ofr89625},
  note = {Source identifier: ofr89625}
}