000 00445nam a2200181Ia 4500
003 OSt
005 20230531134340.0
008 210423s2008 xx 000 0 und d
040 _cAL
041 _aeng
082 _a363.7
_223
_bDASE
100 _aDAS (R C).
_9117925
245 _aEnvironmental science.
260 _aNew Delhi
_bPHI Learning Pvt Ltd
_c2008
365 _b250
_cINR
906 _aEnvironmental ; science.
942 _2ddc
_cBK
999 _c175561
_d175561