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  1. Common trees of Puerto Rico and the Virgin Islands / by Elbert L. Little, Jr., and Frank H. Wadsworth.
    By: Little, Elbert L. - Wadsworth, Frank H.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture, Forest Service,1964.
    Contributed by: MBLWHOI Library
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  2. Growth and mortality in a virgin stand of ponderosa pine compared with a cut-over stand /
    By: Wadsworth, Frank H. - Pearson, G. A.
    Publication info: Tucson, Ariz. :Southwestern Forest and Range Experiment Station,1943
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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