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  1. Pestina says: Help stop the spread of plant pests
    By: United States.
    Publication info: Washington,U.S. Govt. Print. Off.1969
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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  2. List of intercepted plant pests / United States Department of Agriculture, Plant Quarantine and Control Administration.
    By: United States.
    Publication info: [Washington, D.C. :U.S. G.P.O.],1932-
    Contributed by: Smithsonian Libraries
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