000 00408nam a2200181Ia 4500
008 200130s9999||||xx |||||||||||||| ||und||
020 _c40
040 _aMAIN
041 _aEnglish
082 _a581.5
_bVER
100 _aVerma,P S
245 0 _aPrinciples of Ecology
260 _c1989
_bS Chand & Company Ltd.
_aNewDelhi
300 _a591
_bPBB
650 _aEcology
700 _aAgarwal,V K
942 _cBK
999 _c25
_d25