The International Drinking Water Supply and Sanitation Decade :
The International Drinking Water Supply and Sanitation Decade : review of national baseline data, as at 31 December 1980.
- Geneva : World Health Organization, 1984.
- 169 p.
- WHO offset publication ; no. 85 .
ara eng fre spa.
9241700858
Water supply.
Drinking water.
Sanitation.
WA 675
ara eng fre spa.
9241700858
Water supply.
Drinking water.
Sanitation.
WA 675