Water for human needs; proceedings of the second World Congress on Water Resources - v. 1: Energy and food.- v. 2: Health and planning.- v. 3: Development and meteorology.- v. 4: Management and education.- v. 5: Technology and ecology

abastecimiento de agua approvisionnement en eau besoin en eau calidad del agua ecologia ecologie ecology energia energie energy energy generation environmental management gestion des eaux gestion des ressources irrigation meteorologia meteorologie meteorology necesidades de agua planification planning ressource en eau riego technologie technology tecnologia water management water quality water requirements water resources water supply