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  1. 1

    Environmental impacts and some factors affecting firewood extraction the case of Callao Caves National Park upper watershed area, Peñablanca, Cagayan حسب Pasicolan, Paulo N.

    منشور في 1989
    كتاب

    Environmental impacts and some factors affecting firewood extraction the case of Callao Caves National Park upper watershed area, Peñablanca, Cagayan
  2. 2

    Fuelwood stumpage financing renewable energy for the world's other half حسب Openshaw, Keith

    منشور في 1989
    كتاب

    Fuelwood stumpage financing renewable energy for the world's other half

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