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Please read BHL's Acknowledgment of Harmful Content
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  1. By: White, Eric M., - Zarnoch, Stanley J. - English, Donald B. K. (Donald Blair Knapp), - Pacific Northwest Research Station (Portland, Or.)
    Publication info: Portland, OR, United States Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, [2007]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library