000 00297nam 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
_c21cm
_aviii,386
999 _c392735
_d392735
041 _aeng