Safe water and waste disposal for rural health a program guide.

Detalhes bibliográficos
Corporate Authors:	National Demonstration Water Project, U.S. Agency for International Devvelopment
Formato:	Livro
Idioma:	inglês
Publicado em:	U.S.A. United States Agency for International Development (A.I.D.) 1982.
Assuntos:	Water supply. Public health. Waste disposal.