University of Illinois Urbana-Champaign

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Showing 5041–5070 of 7,157 items
Thumbnail for Field Guide to Butterflies of Illinois
Field Guide to Butterflies of Illinois
Bouseman, John K.; Sternburg, James G.

Thumbnail for Mass balance of nitrogen and phosphorus in an agricultural watershed : the shallow groundwater component
Mass balance of nitrogen and phosphorus in an agricultural watershed : the shallow groundwater component
Mehnert, Edward; Dey, William S.; Hwang, Hue-Hwa; Keefer, Donald A.; Holm, Thomas R.; Johnson, Thomas M.; Beaumont, Will C.; Wander, Matthew C.F.; Sanford, Robert A.; McDonald, Jennifer M.; Shiffer, Shawn M.