00284nam a2200133Ia 4500020001800000082001000018100002400028245002200052250000600074260005000080300000800130500000600138650000600144  a0 19 888094 4  a574.5  aOwen, Dennis Frank  0aWhat Is Ecology ?  a-  aLondonbOxford & IBH Publishing Co. Pvt. Ltd.  a188  a0  a-