Dangos 1 - 2 canlyniadau o 2 ar gyfer chwilio '"National parks and reserves Environmental aspects"', amser ymholiad: 0.08e Mireinio'r Canlyniadau
  1. 1
    gan Lowry, William R. 1953-
    Cyhoeddwyd 2009
    Llyfr

    Repairing paradise the restoration of nature in America's national parks
  2. 2
    gan Cropper, Maureen M.
    Cyhoeddwyd 2001
    Llyfr

    How the location of roads and protected areas affects deforestation in North Thailand
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