@misc{indiciaefc8967760b2f,
  title = {Water-resources activities of the U.S. Geological Survey in Illinois, 1991},
  author = {G. O. Balding},
  year = {1992},
  doi = {10.3133/ofr92452},
  url = {https://pubs.usgs.gov/publication/ofr92452},
  note = {Source identifier: ofr92452}
}