000 00392 a2200169 4500
003 OSt
040 _cIIT Kanpur
041 _aeng
082 _a614.772
_bW89i2
110 _aWorld Health Organization.
245 1 _aINTERNATIONAL STANDARDS FOR DRINKING WATER
250 _a2nd
260 _aGeneva
_c1963
_bWHO
300 _a206p.
650 _aDrinking Water -- Standards
942 _cBK
999 _c453618
_d453618