Economics of upland resource depletion shifting cultivation in the Philippines por Delos Angeles, Marian S.

Depletion of the forest resources in the Philippines por Ooi, Jin Bee

Depletion of the forest resources in the Philippines. por Ooi, Jin Bee

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Depletion of the Forest Resources in the Philippines por Bee,Ooi Jin

Depletion of the forest resources in the Philippines por Ooi, Jin Bee

The Bontok traditional wet-rice and swidden cultivators of the Philippines por Brett, June Prill

Mindoro highlanders the life of the Swidden agriculturists por Kikuchi, Yasushi

Shifting cultivation practices among the Ikalahans por Barker, Thomas C.

Mindoro highlanders the life of the Swidden agriculturists por Kikuchi, Yasushi

Swidden cultivation in Asia.