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_aBeets, Willem C. _9130120 |
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| 245 | 1 | 0 | _aRaising and sustaining productivity of smallholder farming systems in the tropics : a handbook of susteinable agricultural development / Willem C. Beets |
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_aAlkmaar _bAgbé Publishing _c1990 |
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| 300 | _a738 páginas | ||
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_aAgricultura Sostenible _9115724 |
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_aDesarrollo Agricola _97227 |
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_aSistemas Agrarios _911979 |
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_aProducción Agricola _94357 |
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_aTropical _9115187 |
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_aCultivos _94356 |
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_aPaises Bajos _912729 |
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_aEstructura Agricola _961213 |
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