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Start Over You searched for: Publish Year Decade 1940 - 1949 Remove constraint Publish Year Decade: 1940 - 1949 Sudoc Stem A 77.312 Remove constraint Sudoc Stem: A 77.312

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143. DDT (insecticide). Experiments with DDT conducted by State agricultural experiment stations, agricultural colleges, and other non-Federal research organizations. New Mexico College of Agriculture and Mechanic Arts, Department of Biology, State College, N Mex.