Lessons learned from the wash project : ten years of water and sanitation experience in developing countries
Lessons learned from the wash project : ten years of water and sanitation experience in developing countries
/by Water and Sanitation for Health Project
- Arlington, Virginia : Water and Sanitation for Health Project, 1990.
- 100 p. : ilus. ; gráfs.
75886
Agua--Abastecimiento.
Agua--Purificacion.
75886
Agua--Abastecimiento.
Agua--Purificacion.