LEADER 01825oam  2200529   450 
001 9910707775003321
005 20161101074359.0
035   $a(CKB)5470000002466796
035   $a(OCoLC)610592396
035   $a(EXLCZ)995470000002466796
100   $a20100503g19391941  ua             0
101 0 $aeng
135   $aur|n|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aMilitary cryptanalysis /$fby William F. Friedman
210  1$aWashington :$cUnited States Government Printing Office,$d1939-1941.
215   $a1 online resource (4 volumes) : illustrations
300   $aAt head of title: War Department. Office of the Chief Signal Officer, Washington.
300   $a"Prepared under the direction of the Chief Signal Officer."
300   $a"Declassified and approved for release by NSA on 09-19-2005 pursuant to E.O. 12958, as amended."
300   $aFormerly restricted.
320   $aIncludes bibliographical references and indexes.
606   $aCiphers
606   $aCryptography
606   $aWorld War, 1939-1945$xMilitary intelligence$zUnited States
606   $aWorld War, 1939-1945$xCryptography$vSources
606   $aCiphers$2fast
606   $aCryptography$2fast
615  0$aCiphers.
615  0$aCryptography.
615  0$aWorld War, 1939-1945$xMilitary intelligence
615  0$aWorld War, 1939-1945$xCryptography
615  7$aCiphers.
615  7$aCryptography.
700   $aFriedman$b William F$g(William Frederick),$f1891-1969,$01386590
712 02$aUnited States.$bArmy.$bSignal Corps,
801  0$bZCU
801  1$bZCU
801  2$bOCLCF
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910707775003321
996   $aMilitary cryptanalysis$93474033
997   $aUNINA