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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 od Pasicolan, Paulo N.

    Wydane 1989
    Książka

    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 od Openshaw, Keith

    Wydane 1989
    Książka

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

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