000 00320nam a2200133Ia 4500
008 150201s1998 xx 000 0 und d
082 _a610
_bG99W
100 _aWHO
245 _aGUIDELINES FOR DRINKING WATER QUALITY-I
250 _a2ND
260 _bAITBS
_aDELHI
_c1998
650 _aCOMMUNITY MEDICINE
942 _2ddc
_cBK
999 _c756
_d756