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  1. Experimentos con abono en árboles del género citrus en Puerto Rico.
    By: Kinman, Charles Franklin,
    Publication info: Washington,1917.
    Contributed by: Library of Congress
    BHL Collections: Publicaciones en Español
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  2. The mango in Porto Rico.
    By: Kinman, Charles Franklin,
    Publication info: Washington,Govt. print. off.,1918.
    Contributed by: Library of Congress
    View Book