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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Dickson, David R. - McAfee, Carol L. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, PA, Northeastern Forest Experiment Station, [1988]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Powell, Douglas S. - Dickson, David R. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, Pa, U.S. Dept. of Agriculture, Forest Service, Northeastern Station, 1984
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Dickson, David R. - McAfee, Carol L. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, PA, Northeastern Forest Experiment Station, [1988]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Dickson, David R. - McAfee, Carol L. - Northeastern Forest Experiment Station (Radnor, Pa.)
    Publication info: Broomall, PA, Northeastern Forest Experiment Station, [1988]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library