000 00260nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aH.D. KUMAR
245 0 _aMODERN CONCEPT OF ECOLOGY
260 _bNil
260 _c2006
365 _b0.00
942 _cBK
999 _c165582
_d165582