000 00324pam a2200145 a 4500
020 _c
041 _aeng
082 _bPUR
100 _aPurohit Agrwal .
245 _aecology and environmental Biology
_hTextual Documents
250 _a2007.
260 _a[s.l]:
_bStudent Edition
300 _a644 pg .
930 _a8816
999 _c85722
_d85722