000 004380000a22001690004500
060 _a100
082 _a574 SIM
100 _aBeck, William S
100 _aSimpson, Gerorge gaylord
245 _aLife : an introductin to biology
250 _a2
260 _aNew York, Harcourt brace & world Inc
260 _c1957
300 _a869
650 _aLife/ molecular aspects - biology/ cell/ reproduction/ biogeography
942 _cBK
999 _c351178
_d351178