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  1. Douglas fir research in the Pacific Northwest, 1920-1956 :
    By: Isaac, Leo A. - Fry, Amelia R. - Bancroft Library.
    Publication info: Berkeley, Calif. :University of California,c1967.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Douglas fir  Forest service  Forests and forestry  Northwest, Pacific  Oral histories  Pacific Northwest Forest and Range Experiment Stat  United States  
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