000 00313nam a22001337a 4500
020 _a0674192818
082 _a121
100 _aPLOTKIN,Henry
245 _aDarwin machines
_cPlotkin Henry
260 _aUnited states of Ameica
_bHarvard
_cc1994
300 _axvii,269p.:
500 _aIncludes index.
942 _cBK01
999 _c738
_d738