000 00289nam a2200133Ia 4500
100 _aKumar,H.D.
365 _b45
942 _cBK
654 _a
245 _aModern Concepts of ecology
260 _aNew Delhi
_bVikas Publishing House
_c1977
082 _a574.5
300 _bHb
_aviii,386
999 _c392734
_d392734
041 _aeng