WHO. International reference centre for community water supply: Participation and education in community water supply and sanitation programmes

Wijk-sijbesma, Christine Van

WHO. International reference centre for community water supply: Participation and education in community water supply and sanitation programmes Christine Van Wijk-sijbesma - Netherlands WHO 1979 - 214 ilus - Technical Paper, 12 .


Abastecimiento de agua
Servicios de salud comunitaria