000 00303nam a2200133Ia 4500
008 160316s1973 xxu||||| |||| 00| 0 eng d
020 _a
100 _aMayr , Ernst
245 _aAnimal Species And Evolution
250 _a1ST
260 _aCAMBRIDGE
_bBELKEEP PRESS
_c1973
300 _a797
700 _a
_a
999 _c9945
_d9945