@article{105835, note = {On cover: State of Illinois, Department of Energy and Natural Resources.}, author = {Visocky, A. P.}, url = {http://library.usi.edu/record/105835}, title = {Geology, hydrology, and water quality of the Cambrian and Ordovician systems in northern Illinois /}, publisher = {State Water Survey [and] State Geological Survey,}, recid = {105835}, pages = {136 p. :}, address = {Champaign, Ill. :}, year = {1985}, }