Before Bletchley Park : the codebreakers of the First World War
The story of Bletchley Park's codebreaking operations in the Second World War is now well known, but its counterparts in the First World War Room 40 and MI1(b) remain in the shadows, despite their involvement in and influence on most of the major events of that war. From first Battle of the Mar...
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| Format: | BOOK |
| Other Format: | EBOOK |
| Language: | ENGLISH |
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History Press
2020
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