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  1. By: Reukema, Donald L. - Smith, J. Harry G. - Pacific Northwest Research Station (Portland, Or.)
    Publication info: [Portland, Or.] :U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,[1987]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Reukema, Donald L. - Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
    Publication info: Portland, Or. :Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture,1965.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Reukema, Donald L. - Pienaar, Leon V. (Leon Visser), - Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
    Publication info: Portland, Or. :Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service,1973.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library