000 00299 a2200121 4500
080 _a547.963.332
_bL 639 D
245 1 _aDNA
_bAt the core of life itself
_cby L. Lessing
260 _aLondon
_bMacmillan Co. Ltd.
_c1966
650 _aDNA
100 1 _aLessing, L.
_d
300 _a85 p.
901 _a105512
999 _c29882
_d29882