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181   $2rdacontent
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200 10$aSecret duties of a signals interceptor $eworking with Bletchley Park, the SDS and the OSS, or, a long time to hope /$fJenny Nater
210  1$aBarnsley, South Yorkshire, England :$cPen & Sword Aviation,$d2016.
210  4$dİ2016
215   $a1 online resource (248 pages, 24 unnumbered pages of plates) $cillustrations
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606   $aWorld War, 1939-1945$xCryptography$vPersonal narratives
615  0$aWorld War, 1939-1945$xCryptography
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700   $aNater$b Jenny$01247033
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996   $aSecret duties of a signals interceptor$92891143
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