The A-frame
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| Main Author: | |
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| Format: | Texto biblioteca |
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Rome (Italy)
1985
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| Subjects: | MEASURING INSTRUMENTS, SOIL CONSERVATION, CONTOUR CULTIVATION, APPROPRIATE TECHNOLOGY, INSTRUMENT DE MESURE, CONSERVATION DES SOLS, CULTURE EN COURBE DE NIVEAU, INSTRUMENTOS DE MEDICION, CONSERVACION DE SUELOS, CULTIVO EN CURVAS DE NIVEL, TECHNOLOGIE APPROPRIEE, TECNOLOGIA APROPIADA, |
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