Drinking-water and sanitation, 1981-1990 :
Drinking-water and sanitation, 1981-1990 : a way to health, a WHO contribution to the International Drinking Water Supply and Sanitation Decade.
= Eau potable et assainissement, 1981-1990 : vers une meilleure santé : contribution de l' OMS à la Décennie internationale de l' Eau potable et d' Assainissement
- Geneva : World Health Organization, 1981.
- 56 p.
Issued in Spanish as: Publicaci'on cient'ifica / Organizaci'on Panamericana de la Salud ; no. 431.
eng fre.
9241560681
Drinking water.
Sanitation.
WA 675
Issued in Spanish as: Publicaci'on cient'ifica / Organizaci'on Panamericana de la Salud ; no. 431.
eng fre.
9241560681
Drinking water.
Sanitation.
WA 675