000 00342 a2200157 4500
001 B 516
020 _a9789380179759
050 _aRA-1242
_b.B43-2010
100 1 _aDitya Bhatnagar
245 1 4 _aEcology and Environment
260 _aIndia
_bOxford Book Company
_c2010
500 _a
650 _aBiology
650 _aScience
942 _cBK
999 _c8581
_d8581