000 00369nam a2200109Ia 4500
100 _aWorld Health Organization
942 _cBK
245 _aGuidelines for drinking - water quality vol 3 : drinking-water quality control in small-community supplies
260 _aCBS Publishers & Distributors Pvt. Ltd., New Delhi
_c1985
082 _a614.772 W.H.O.
300 _aviii,120p
999 _c68546
_d68546