000 00311nam a2200121Ia 4500
008 220201s1979 xx 000 0 eng d
082 _a620.09
_bBIR
100 _aG.S. Birdi
245 0 _aWater supply and sanitary engineering
260 _aNew Delhi
_bDhanpat Rai and sons
_c1979
300 _a670
942 _2ddc
999 _c22592
_d22592