University of Illinois Urbana-Champaign

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Showing 1231–1260 of 1,490 items
Thumbnail for Biologically Significant Illinois Streams: An Evaluation of the Streams of Illinois Based on Aquatic Biodiversity
Biologically Significant Illinois Streams: An Evaluation of the Streams of Illinois Based on Aquatic Biodiversity
Page, Lawrence M.; Cummings, Kevin S.; Mayer, Christine A.; Post, Susan L.; Retzer, Michael E.

Thumbnail for Guide to the papers in the John Hunter Walker collection, 1911-1953
Guide to the papers in the John Hunter Walker collection, 1911-1953
Carlson, Douglas W.; Pausch, Lois M.; Robertson, Margaret W.