Drinking-water and sanitation, 1981-1990 : a way to health /
Drinking-water and sanitation, 1981-1990 : a way to health /
a WHO contribution to the International Drinking Water Supply and Sanitation Decade
- Geneva : World Health Organization, 1981
- 56 p. ; 24 cm.
9241560681
Water supply
Sanitation
Public health
9241560681
Water supply
Sanitation
Public health
