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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Haugen, David E. - Freeman, Phillip C. - Theisen, Mark A. - United States. Forest Service. - United States. Forest Service. North Central Research Station.
    Publication info: St. Paul, Minn. (1992 Folwell Ave., St. Paul 55108), U.S. Dept. of Agriculture, Forest Service, North Central Research Station, 1998
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library