000 00300nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aKumar H.D
245 0 _aModern concepts of ecology
260 _b"Vikas Publishing house Pvt Ltd., New Delhi"
260 _c0
365 _b195.00
942 _cBK
999 _c155616
_d155616