Soil conservation: a hard lesson to teach
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| Main Authors: | , |
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| Format: | Texto biblioteca |
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Rome (Italy)
1984
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| Subjects: | SOIL CONSERVATION, TERRACE CROPPING, CONTOUR CULTIVATION, EDUCATION, CONSERVATION DES SOLS, CONSERVACION DE SUELOS, CULTURE EN TERRASSE, CULTURE EN COURBE DE NIVEAU, CULTIVO EN TERRAZAS, CULTIVO EN CURVAS DE NIVEL, EDUCACION, |
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