000 00319nam a2200121Ia 4500
008 220201s1980 xx 000 0 eng d
082 _a628.1
_bBHA
100 _aBharat Singh & Gupta, DL
245 0 _aElements of water supply & sanitary engineering
260 _bKatson Publisher
_c1980
300 _a374
942 _2ddc
999 _c81523
_d81523