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The Colossus Computer (1943-1996) by Tony Sale front cover

The Colossus Computer (1943-1996)

by Tony Sale
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Secret Days: Codebreaking in Bletchley Park by Asa Briggs front cover

Secret Days: Codebreaking in Bletchley Park

by Asa Briggs
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Colossus: Bletchley Park's Greatest Secret by Paul Gannon front cover

Colossus: Bletchley Park's Greatest Secret

by Paul Gannon
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The Imitation Game: Alan Turing Decoded by Jim Ottaviani front cover

The Imitation Game: Alan Turing Decoded

by Jim Ottaviani
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Action This Day by Michael Smith front cover

Action This Day

by Michael Smith
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Thirty Secret Years by Robin Denniston front cover

Thirty Secret Years

by Robin Denniston
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Station X: The Codebreakers of Bletchley Park by Michael Smith front cover

Station X: The Codebreakers of Bletchley Park

by Michael Smith
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Greenwitch by Susan Cooper front cover

Greenwitch

by Susan Cooper
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Marillion : Separated Out ...Redux by Jon Collins front cover

Marillion : Separated Out ...Redux

by Jon Collins
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The Code Book by Simon Singh front cover

The Code Book

by Simon Singh
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The Bletchley Park Codebreakers by Ralph Erskine front cover

The Bletchley Park Codebreakers

by Ralph Erskine
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Dilly: The Man Who Broke Enigmas by Mavis Batey front cover

Dilly: The Man Who Broke Enigmas

by Mavis Batey
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THE LAST GOOD WAR: A Novel by Paul Wonnacott front cover

THE LAST GOOD WAR: A Novel

by Paul Wonnacott
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