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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Reinbold, Keturah A. - Illinois. Center for Aquatic Ecology. - United States. Environmental Protection Agency. Region V.
    Publication info: Champaign, IL, Illinois Natural History Survey, Center for Aquatic Ecology, Jan. 1990
    Holding Institution: Lewis & Clark Community College / NGRREC