000 00343nam a2200133Ia 4500
005 20260413100832.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aGarg Santosh Kumar
245 0 _aSewage disposal & air pollution engg
260 _bN Delhi Khanna pub.
_c2012
300 _a1050
942 _cGB
999 _c4873
_d4873