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  1. Poisonous hemlocks : their identification and control /
    By: Tucker, John M. - University of California, Davis.
    Publication info: [Berkeley, Calif.] :Division of Agricultural Sciences, University of California,1964.
    Contributed by: University of California, Davis Libraries (archive.org)
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  1. Francesco Franceschi
    By: Tucker, John M.
    Type: Article
    In: Lasca leaves.
    Volume: v.1-5(1950-1955)
    Issue: Winter 1954
    Date: 1950
    Page Range: 4-8
    Publication info: Arcadia, Calif. :California Arboretum Foundation,1950-1976.
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