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Journal of agricultural research. v.22:no.1-10 (1921)

Parts

  1. Plumblotch, a disease of the Japanese Plum caused by Phyllosticta congesta Heald and Wolf
    By: Roberts, J W
    Type: Article
    In: Journal of agricultural research.
    Volume: 22
    Date: 1921
    Page Range: 365--370
    Publication info: Washington,U.S. Govt. Printing Office,1913-1949.
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