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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Martin, Robert Edward, - Frewing, David W. - McClanahan, James L. - Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
    Publication info: [Portland, Or.?], U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, [1981]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library