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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Beckwith, L. C. - Anderson, Ralph L. - Lake States Forest Experiment Station (Saint Paul, Minn.)
    Publication info: [St Paul, Minn.], Lake States Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1956
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Schmiege, Donald C. - Anderson, Ralph L. - Lake States Forest Experiment Station (Saint Paul, Minn.)
    Publication info: [St Paul, Minn.], Lake States Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1958
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Anderson, Ralph L. - Batzer, Harold O. - International Union of Forestry Research Organizations. - United States. Forest Service.
    Publication info: [Washington], U.S. Forest Service, 1976
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library