000 00259nam a2200109Ia 4500
008 220201s1968 xx 000 0 eng d
100 _aBirdi,GS
245 0 _aWater supply engeering
260 _bDelhi:Dhanpat rai & sons
_c1968
300 _a158
942 _2ddc
999 _c79092
_d79092