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

Economics of upland resource depletion shifting cultivation in the Philippines מאת Delos Angeles, Marian Segura

Change over time in a farming system based on shifting cultivation of hill rice in Sarawak, Malaysia מאת Best, J.R

Economics of upland resource depletion shifting cultivation in the Philippines מאת Delos Angeles, Marian Segura

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

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

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

Problems and protests for sustainable agricultural systems in the humid tropics מאת Charlton, Clive A.

Saleable seeds מאת Timm, Mark

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