TY - RPRT TI - Water resources data for Illinois, water year 1980; Volume 1, Illinois except Illinois River basin AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1981 DO - 10.3133/wdril801 UR - https://pubs.usgs.gov/publication/wdrIL801 ID - wdrIL801 ER -