000 00303nam a2200133Ia 4500
008 160316s1954 xxu||||| |||| 00| 0 eng d
020 _a
100 _aGeorge L. Clarke
245 _aElements Of Ecology
250 _a1st
260 _aNEW YORK
_bJOHN WILEY & SONS
_c1954
300 _a560
700 _a
_a
999 _c11438
_d11438