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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Benson, Robert E. (Robert Earl), - Ullrich, James R. - Forestry Sciences Laboratory (Missoula, Mont.)
    Publication info: Ogden, Utah, Intermountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1981
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library