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

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

Mostra tutte le versioni (2)
Dettagli Bibliografici
Ente Autore: World Health Organization
Natura: Libro
Lingua:English
Pubblicazione: Geneva World Health Organization 1981.
Soggetti:
Drinking water > Health aspects > Developing countries.
Sanitary engineering > Developing countries.
Health planning > Developing countries.