000 00400nam a2200157Ia 4500
008 210301b2007 xxu||||| |||| 00| 0 eng d
082 _a363.73 DUH
100 _aDUH, N.H. GOPAL
245 _aENVIRONMENTAL POLLUTION AND CONTROL
260 _aDELHI
_bNEELKAMAL
_c2007.
300 _a302
500 _aB.ED
690 _aENVIRONMENTAL
690 _aB.ED
690 _aDEPARTMENT OF EDUCATION
690 _aMRU
905 _aBooks
906 _aMRU
907 _a145198
999 _c233077
_d233077