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  1. Glimpses of our national parks ...
    By: United States. - Yard, Robert Sterling,
    Publication info: Washington,Govt. Print. Off.,1916.
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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  2. Our federal lands : a romance of American development / by Robert Sterling Yard.
    By: Yard, Robert Sterling,
    Publication info: New York :C. Scribner's Sons,1928.
    Contributed by: Prelinger Library (archive.org)
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