Drinking-water and sanitation, 1981-1990 a way to health.

Drinking-water and sanitation, 1981-1990 a way to health.

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Detalhes bibliográficos
Autor Corporativo: World Health Organization
Formato: Livro
Idioma:English
Publicado em: Geneva World Health Organization 1981.
Assuntos:
Drinking water > Health aspects > Developing countries.
Sanitary engineering > Developing countries.
Health planning > Developing countries.