000 00316nam a2200133Ia 4500
005 20260413100922.0
008 230516s9999||||xx |||||||||||||| ||und||
100 _aSincero, A.P.
245 0 _aEnvironmental engg.
260 _bN. Delhi-PHI
_c2002
300 _a795
942 _cGB
999 _c5512
_d5512