000 00616cam a22002051 4500
001 1695389
003 BD-DhUL
005 20161214152547.0
008 711228s1967 nyuach b 000 0 eng
010 _a 63016109
040 _aDLC
_cDLC
_dDLC
_dBD-DhUL
082 0 0 _a652.8
_bKAC
100 1 _aKahn, David,
_d1930-
245 1 4 _aThe codebreakers :
_bthe story of secret writing /
_cDavid Kahn.
260 _aNew York,
_bMacmillan
_c[1967]
300 _axvi, 1164 p. :
_billus., facsims., ports ;
_c24 cm.
504 _aIncludes bibliographical references.
650 0 _aCryptography
_xHistory.
942 _2ddc
_cBK
999 _c135294
_d135294