תוצאות חיפוש - Papua New Guinea. Office of Forests
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Commercial timbers of Papua New Guinea : their properties and uses /
יצא לאור 1977“...Papua New Guinea. Office of Forests...”
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Timber resource development the Papua New Guinea way : the necessity /
יצא לאור 1980“...Papua New Guinea. Office of Forests...”
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Reforestation following chipwood logging : a review of silvicultural research at the Gogol Valley /
יצא לאור 1976“...Papua New Guinea. Office of Forests...”
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The effect of logging operations on stream turbidity levels in the rain forests of the Gogol Valley /
יצא לאור 1977“...Papua New Guinea. Office of Forests...”
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FAO China study tour : mass mobilisation of the rural communities for afforestation in the People's Republic of China /
יצא לאור 1979“...Papua New Guinea. Office of Forests...”
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