000 00274nam a2200121Ia 4500
008 220821s2009 xx 000 0 eng d
100 _aDE, ANIL KUMAR
245 0 _aENVIRONMENTAL ENGINEERING
250 _a1ST
260 _bNEW AGE
_c2009
300 _a191
942 _2ddc
_cBTECH
999 _c988
_d988