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  1. 1
    Published 1979
    “...New Zealand Forest Service,...”
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    Handbook for the assessment and control of Dothistroma needle blight /
  2. 2
    Published 1978
    “...Forest Service, U.S. Dept. of Agriculture,...”
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    Diseases of Pacific Coast conifers /
  3. 3
    by Wilson, Louis F.
    Published 1977
    “...Forest Service, U.S. Dept. of Agriculture,...”
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    A guide to insect injury of conifers in the Lake States /
  4. 4
    Published 2001
    “...Canadian Forest Service, Pacific Forestry Centre,...”
    Government Document Book
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    The effects of prescribed burning on mountain pine beetle in lodgepole pine /
  5. 5
    by Shigo, Alex L., 1930-
    Published 1983
    “...Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station,...”
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    Tree defects : a photo guide /
  6. 6
    Published 1994
    “...Natural Resources Canada, Canadian Forest Service, Science and Sustainable Development Directorate,...”
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    Tree diseases of eastern Canada /
  7. 7
    by Radwan, M. A., 1926-
    Published 1970
    “...Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture,...”
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    Impregnating and coating with endrin to protect Douglas-fir seed from rodents /

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