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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Integrated Forest Pest Management Colloquium Pinchot Institute for Conservation Studies) - Gale, Robert D. - Pinchot Institute for Conservation Studies.
    Publication info: Milford, Pa, Pinchot Institute for Conservation Studies, [Forest Service, U.S.D.A.], 1979
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library