University of Illinois Urbana-Champaign

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Showing 1081–1110 of 3,317 items
Thumbnail for Waterfowl Populations and the Changing Environment of the Illinois River Valley
Waterfowl Populations and the Changing Environment of the Illinois River Valley
Bellrose, Frank Chapman; Paveglio, Fred, L. Jr.; Steffeck, Donald W.

Thumbnail for Geologic mapping for environmental planning, McHenry County, Illinois
Geologic mapping for environmental planning, McHenry County, Illinois
Curry, B. Brandon; Berg, Richard C.; Vaiden, Robert