Capital and working costs of underdrainage machinery with special reference to economic and technical comparison between different operational systems
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| Main Authors: | , , |
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| Format: | Texto biblioteca |
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1972
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| Subjects: | AGL ECA WR, SUBSURFACE DRAINAGE, DRAINAGE EQUIPMENT, OPERATING COSTS, CAPITAL, COSTS, ECONOMIC SITUATION, DRAINAGE SYSTEMS, DESIGN, DRAINAGE SOUTERRAIN, MATERIEL DE DRAINAGE, COUT OPERATIONNEL, COUT, DRENAJE SUBTERRANEO, EQUIPO DE DRENAJE, COSTOS DE EXPLOTACION, COSTOS, SITUATION ECONOMIQUE, RESEAU DE DRAINAGE, CONCEPTION, SITUACION ECONOMICA, RED DE DRENAJE, DISENO, |
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