000 00253nam a2200121 4500
003 OSt
020 _a9788131508572
100 _aDAVE ,DEEKSHA
245 _aT.B. ENVIRONMENTAL STUDIES
260 _bCENGAGE
_c2009
300 _a319 P.
942 _2cc
_cBK
999 _c14835
_d14835