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  1. Beiträge zur Entwicklungs-Geschichte der Eingeweidewürmer / von G. R. Wagener.
    By: Wagener, Guido Richard,
    Publication info: Haarlem :Loosjes,1857.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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  2. Beiträge zur Entwicklungs-Geschichte der Eingeweidewürmer.
    By: Wagener, Guido Richard,
    Publication info: Haarlem :Loosjes,1857.
    Contributed by: University of Illinois Urbana Champaign
    View Book