Online Books by
William H. Ettinger
Books from the extended shelves:
Ettinger, William H.: Biological investigation of Mississippi River central and north central basins, A-01, A-02, and B-01, B-02 / ([Springfield] : Illinois Environmental Protection Agency, Division of Water Pollution Control, State of Illinois, 1976), also by William Jacob Tucker and Illinois. Division of Water Pollution Control (page images at HathiTrust; US access only)
Ettinger, William H.: A biological investigation of the South Fork, Sangamon River and tributaries / ([Springfield] : Illinois Environmental Protection Agency, Division of Water Pollution Control, 1975), also by William Jacob Tucker and Illinois. Division of Water Pollution Control (page images at HathiTrust)
Ettinger, William H.: An intensive survey of the Embarras River Basin, 1987 / ([Springfield, Ill.] : State of Illinois, Environmental Protection Agency, Division of Water Pollution Control, Planning Section, [1989]), also by Illinois. Division of Water Pollution Control (page images at HathiTrust)
Ettinger, William H.: An intensive survey of the Vermilion River basin, Illinois River drainage, summer 1990 / (Springfield, Ill. : State of Illinois, Environmental Protection Agency, Bureau of Water, Division of Water Pollution Control, Planning Section, [1994]), also by Matthew B. Short, Illinois. Environmental Protection Agency, and Illinois. Division of Water Pollution Control (page images at HathiTrust)
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