000 00340nam a2200145Ia 4500
100 _aKumar,Arvind
020 _a81-7648-406-7
365 _b1795
942 _cBK
654 _a
245 _aEnvironmental challenges of the 21st century
260 _aNew Delhi
_bAPH Publishing Corporation
_c2003
082 _a574.5
300 _bHb
_a673
999 _c398381
_d398381
041 _aeng