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  1. 1
    by Drolet, J. C.
    Published 1973
    Subjects “...Black spruce....”
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    Stump volume of swamp-grown black spruce /
  2. 2
    by Weetman, G. F.
    Published 1972
    Subjects “...Black spruce....”
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    Effects of different forms of nitrogen fertilizer on nutrient uptake by black spruce and its humus and humus mesofauna /
  3. 3
    by Drolet, J. C.
    Published 1971
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    Branchiness of jack pine, black spruce and balsam fir in relation to mechanized delimbing /

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