The secret war the inside story of the code makers and code breakers of world war ll
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| Format: | Book |
| Language: | English |
| Published: |
Cincinnati
A David & Charles Book
2007
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| Subjects: |
| Physical Description: | 288 p. 24 cm |
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| Bibliography: | Includes bibliographical references and index |
| ISBN: | 0715327437 9780715327432 |