Top Secret Ultra
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| Google books | books.google.com |
|---|---|
| Originally published | 1980 |
| Authors | Peter Calvocoressi |
| Genres | Biography |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2917979 |
About Top Secret Ultra
Bletchley Park, a modest estate some fifty miles northwest of London, was the site of one of the closest-held and longest-kept secrets of World War II. . . .