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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 по Pasicolan, Paulo N.

    Опубликовано 1989
    ‌

    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 по Openshaw, Keith

    Опубликовано 1989
    ‌

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

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