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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Campbell, Robert A. (Robert Alvord),
    Publication info: Asheville, N.C, U.S. Dept. of Agriculture, Forest Service, Southeastern Forest Experiment Station, [1954]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Campbell, Robert A. (Robert Alvord), - Southeastern Forest Experiment Station (Asheville, N.C.)
    Publication info: Asheville, N.C, U.S. Dept. of Agriculture, Forest Service, Southeastern Forest Experiment Station, [1962]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Campbell, Robert A. (Robert Alvord),
    Publication info: Asheville, N.C, U.S. Dept. of Agriculture, Forest Service, Southeastern Forest Experiment Station, [1957]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library