Progress on sanitation and drinking-water:

Progress on sanitation and drinking-water: 2013 update. - Geneva : World Health Organization, 2013. - 39 p.


eng

WHODOC

9789241505390


Water supply--standards.
Sanitation.
Drinking water--supply and distribution.
Water treatment--standards.
Program evaluation.

WA 670 2013PR
Implemented & Customized by: OpenLX

Powered by Koha