000 00526cam a2200169 4500
020 _a080528100 (pbk) :
_c46.00 SGD
100 1 _aFREEDMAN Maurice
245 _aUnravelling enigma :
_bwinning the code war at Station X /
_cMaurice Freedman.
260 _aBarnsley UK :
_bPen & Sword,
_c2001.
300 _avii, 190 p. :
_bill.
650 _aSECOND WORLD WAR
_xSIGNALS INTELLIGENCE
650 _aBLETCHLEY PARK
650 _aENIGMA PROJECT
650 _aCODE BREAKING
945 _i29023-1002
_rY
_sY
945 _i29023-1001
_rY
_sY
999 _c14530
_d14530