000 00298nam a2200109Ia 4500
008 220201s2017 xx 000 0 eng d
100 _aUpadhyay, A.K and Lal A
245 0 _aWater supply and wastewater engineering
260 _aNew Delhi
_bS.K kataria and sons
_c2017
300 _a429
942 _2ddc
999 _c29885
_d29885