000 00305 a2200121 4500
080 _a547.963.32
_bL 639 D
245 1 _aDNA
_bAt the core of life itself
_cby Lawrence Lessing
260 _aLondon
_bMacMillan Co.
_c1967
650 _aDNA
100 1 _aLessing, Lawrence
_d
300 _a85 p.
901 _a103345
999 _c29867
_d29867