@misc{indiciae36c443efe9c6, title = {Water resources data for Illinois, water year 1980; Volume 1, Illinois except Illinois River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1981}, doi = {10.3133/wdril801}, url = {https://pubs.usgs.gov/publication/wdrIL801}, note = {Source identifier: wdrIL801} }