000 00272nam a2200121Ia 4500
008 221102s9999 xx 000 0 und d
082 _a338.9
100 _aUberai, N K
245 0 _aEnviornment Management
260 _bExcel
_aDelhi
_c2003
300 _a414 p.
942 _cBK
999 _c9271
_d9271