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1
Hydrology of area 31, Eastern Region, Interior Coal Province, Illinois and Indiana /
Published 1987“…Province, Illinois and Indiana.…”
Search for the full-text version of this title in HathiTrust
Government Document Book -
2
Areal studies aid protection of ground-water quality in Illinois, Indiana, and Wisconsin /
Published 1999Search for the full-text version of this title in HathiTrust
Government Document Book