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  1. Environmental inventory and assessment of Navigation Pools 24, 25, and 26, Upper Mississippi and Lower Illinois Rivers : an electrofishing survey of the Illinois River / Richard E. Sparks.
    By: Sparks, Richard E. - University of Illinois (Urbana-Champaign campus). Water Resources Center.
    Publication info: [Urbana, Ill. :University of Illinois at Urbana-Champaign, Water Resources Center],1977.
    Contributed by: Lewis & Clark Community College / NGRREC (
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