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Journal of agricultural research. v.18:no.1-12 (1919-1920)

Parts

  1. The European Frit Fly in North America
    By: Aldrich, John Merton,
    Type: Article
    In: Journal of agricultural research.
    Volume: 18
    Date: 1920
    Page Range: 451--472
    Publication info: Washington,U.S. Govt. Printing Office,1913-1949.
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