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  •     
    Author(s): United States. Navy Dept. Bureau of Aeronautics.
    Date: 1944
    Subject(s): DDT; Insect Control - methods

  •     
    Author(s): United States. Army Pictorial Service.
    Date: 1945
    Subject(s): DDT; Disease Outbreaks - prevention & control; Insect Control - methods; Insect Vectors

  •     
    Author(s): National Cancer Institute (U.S.); National Institute of Health and Medical Research (Ghana)
    Date: 1969
    Subject(s): DDT; Insect Control; Insect Vectors; Onchocerciasis