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  1. Factors influencing the pathogenicity of Helminthosporium sativum / by Louise Dosdall.
    By: Dosdall, Louise,
    Publication info: Minnesota :s.n.,1922
    Contributed by: Library of Congress
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  2. Factors influencing the pathogenicity of Helminthosporium sativum / by Louise Dosdall.
    By: Dosdall, Louise,
    Publication info: Minnesota :s.n.,1922
    Contributed by: University of California Libraries (archive.org)
    View Book