000 00358nam a22001457a 4500
003 OSt
008 100130t xxu||||| |||| 00| 0 eng d
082 _a628:504
_bSIN
100 _aSingh Pratibha13183
245 _aTextbook of environment and ecology
300 _axv,348
942 _2ddc
_cBK
260 _aNew Delhi
_bAcme
_c2009
020 _a9788190710497
999 _c352393
_d352393