@article{248568, recid = {248568}, author = {Berg, Richard C.}, title = {Aquifer sensitivity classification for Illinois using depth to uppermost aquifer material and aquifer thickness /}, publisher = {Illinois State Geological Survey,}, address = {Champaign, Ill. :}, pages = {14 p. :}, year = {2001}, url = {http://library.usi.edu/record/248568}, }