University of Illinois Urbana-Champaign

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Showing 2131–2160 of 3,289 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 Bacteria and their activities in sewage waters
Bacteria and their activities in sewage waters
Kaeser, Jennie Mary Latzer, b. 1878.