International standards for drinking-water.
International standards for drinking-water.
= Normas internacionales para el agua potable = Normes internationales pour l' eau de boisson
- 3rd ed.
- Geneva : World Health Organization, 1971.
- 70 p.
Superseded by: Guidelines for drinking-water quality. 1984-85.
ara eng fre por rus spa.
9241540249
Drinking water--standards.
WA 675
Superseded by: Guidelines for drinking-water quality. 1984-85.
ara eng fre por rus spa.
9241540249
Drinking water--standards.
WA 675