000 00312 a2200133 4500
080 _a547.963.32:541.6
_bO 43 P
245 1 _aPath to the double helix
_cby R. Olby
260 _aLondon
_bMacmillan
_c1974
650 _aPath
650 _aDouble Helix
100 1 _aOlby, R.
_d
300 _a510 p.
901 _a142727
999 _c68401
_d68401