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  1. The study of forestry. Supplementing exhibit of the United States Forest Service at the Brazil Centennial Exposition, Rio de Janeiro, Brazil, 1922-1923. By Henry S. Graves, formerly forester, United States Forest Service.
    By: Graves, Henry S. - United States.
    Publication info: Washington,Govt. Print. Off.,1922
    Contributed by: University of California Libraries (archive.org)
    Subjects: (1922-1923 :  Brazil  Exposição do centenario do Brasil  Forestry schools and education  Forests and forestry  Rio de Janeiro, Brazil)  United States  
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