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| LEADER |
009110000a22002530004500 |
| 020 |
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|a 978-0-19-957814-6
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| 082 |
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|a 940.548 641 Q0
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| 100 |
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|a Copeland, B Jack; Author
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| 245 |
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|a Colossus: the secrets of Bletchley Park's codebreaking computers
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| 250 |
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| 260 |
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|a Oxford, Oxford University Press
|e 2010
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| 260 |
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|c 2010
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| 460 |
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|a xvi, 462p
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| 465 |
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|a GBP 11.99
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| 500 |
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|a B Jack Copeland
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| 500 |
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|a Includes bibliographical references and index
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| 650 |
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|a Cryptography-Germany-History
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| 650 |
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|a Cryptography-Great Britain-History
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| 650 |
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|a Lorenz cipher system
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| 650 |
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|a World War, 1939-1945-Cryptography
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| 650 |
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|a World War, 1939-1945-Electronic intelligence-Great Britain
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| 942 |
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|c BK
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| 999 |
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|c 48739
|d 48739
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| 952 |
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|0 0
|1 0
|4 0
|6 940_548000000000000_641_Q0
|7 0
|8 ENG
|9 49471
|a MGUL
|b MGUL
|d 2013-07-16
|e GBP 11.99
|l 0
|o 940.548 641 Q0
|p 46899
|r 2013-07-16
|w 2013-07-16
|y BK
|