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  1. An investigation of the potential for the use of organic fertilizer on small, mixed farms in Costa Rica / by Marilyn E. Swisher.
    By: Swisher, Marilyn E.,
    Publication info: 1982.
    Contributed by: University of Florida, George A. Smathers Libraries (archive.org)
    Subjects: Compost  Costa Rica  Dissertations, Academic  Farms, Small  Geography  Geography thesis Ph. D  Organic fertilizers  UF  
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