Invention, mere de la necessite
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Main Authors: | , , |
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Format: | Texto biblioteca |
Language: | |
Subjects: | CONTOUR CULTIVATION, TRADITIONAL FARMING, LABOUR, CULTURE EN COURBE DE NIVEAU, AGRICULTURE TRADITIONNELLE, TRAVAIL, CULTIVO EN CURVAS DE NIVEL, AGRICULTURA TRADICIONAL, TRABAJO, |
Online Access: | http://www.fao.org/docrep/T3550E/T3550E00.htm |
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