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  1. Using honey bees to pollinate crops /
    By: Levin, M. D. - United States.
    Edition: Rev. Mar. 1986.
    Publication info: [Washington, D.C.?] :U.S. Dept. of Agriculture,1986.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Bees  Pollination by insects  United States  
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  2. Variation in floral fragrances and pollinators in the Gongora quinquenervis complex (Orchidaceae) in central Panama / by William Mark Whitten.
    By: Whitten, William Mark,
    Publication info: 1985.
    Contributed by: University of Florida, George A. Smathers Libraries (
    Subjects: Botany  Botany thesis Ph. D  Dissertations, Academic  Orchids  Panama  Pollination by insects  Reproduction  UF  
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  3. The various contrivances by which orchids are fertilised by insects / by Charles Darwin.
    By: Darwin, Charles,
    Edition: 2d ed., rev.
    Publication info: London :John Murray,1890
    Contributed by: NCSU Libraries (
    Subjects: Fertilization of plants  Inscriptions (Provenance)  Orchids  Pollination by insects  Reproduction  
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