000 00389nam a2200169Ia 4500
008 160330s2006 xxu||||| |||| 00| 0 eng d
020 _a
041 _aEnglish
082 _a628
_bPUR
100 _aPurohit S.S
245 _aEnvironmental Science
250 _a1st
260 _aStudent Edition
_c2006
300 _a397p.
_bPaper
650 _aEnvironmental Science
906 _a21065
999 _c121811
_d121811