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  1. Annelida, by G. Armauer Hansen. With 7 plates and 1 map.
    By: Hansen, G. Armauer - Norske Nordhavs-expedition
    Publication info: Christiana,Grøndahl & Søn,1882.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Institution Libraries
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  1. Insects visiting flowers of wild red raspberry in spruce-fir forested areas of eastern Maine
    By: Hansen, G. Armauer (Gerhard Armauer), 1841-1912
    Type: Article
    In: Entomological News, Philadelphia
    Volume: 94
    Date: 1983
    Page Range: 147--151
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