Illinois Water Quality Data, 1967 Illinois. Sanitary Water Board Published: 1968 Total Pages: Get eBook
Water Resources Data for Illinois Geological Survey (U.S.). Water Resources Division Published: 1980 Total Pages: 940 Get eBook
Water Resources Data for Illinois 1965 Geological Survey (U.S.) Published: 1966 Total Pages: 241 Get eBook
Water Resources Data for Illinois 1969 Geological Survey (U.S.) Published: 1970 Total Pages: 249 Get eBook