000 00278nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aKumar (H.D.)
245 0 _aModern Concepts of Ecology
260 _cNew Delhi : Vikas Pub.
365 _b0
650 _aNIL
942 _cBK
999 _c107340
_d107340