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  1. Key to the Quaternary pollen and spores of the Great Lakes region /
    By: McAndrews, John H. - Berti, Albert A. - Norris, Geoffrey. - Royal Ontario Museum.
    Publication info: Toronto :Royal Ontario Museum,1973.
    Contributed by: Royal Ontario Museum (archive.org)
    Subjects: Great Lakes Region  Paleobotany  Plant spores, Fossil  Pollen, Fossil  Quaternary  
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