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  1. 1
    Trent watershed survey : a reconnaissance

    Trent watershed survey : a reconnaissance per Howe , C.D

    Publicat 1913
    Llibre
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  2. 2
    The effect of repeated forest fires upon the reproduction of commercial species in Peterborough County, Ontario

    The effect of repeated forest fires upon the reproduction of commercial species in Peterborough County, Ontario per Howe, C.D

    Publicat 1915
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