Ground-water quality in the Calumet Region of northwestern Indiana and northeastern Illinois, June 1993 /
by Richard F. Duwelius, Robert T. Kay, and Scott T. Prinos ; prepared in cooperation with the U.S. Environmental Protection Agency.
APA Citation
Duwelius, R. F., Prinos, S. T., Kay, R. T., United States. Environmental Protection Agency., Geological Survey (U.S.). (1996). Ground-water quality in the Calumet Region of northwestern Indiana and northeastern Illinois, June 1993. Indianapolis, IN: U.S. Geological Survey .
MLA Citation
Geological Survey (U.S.), et al.. Ground-water Quality In the Calumet Region of Northwestern Indiana And Northeastern Illinois, June 1993. Indianapolis, IN: U.S. Geological Survey , 1996.
Warning: These citations may not always be complete (especially for serials).