000 00268nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _aGEO/T
100 _aGEORGE GAYLORD SIMPSON
245 4 _aTHE MEANING OF EVOLUTION
261 _c1952
300 _a192
942 _cTB
999 _c9150
_d9150