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Before Bletchley Park: The Codebreakers of the First World War Paul Gannon
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Before Bletchley Park: The Codebreakers of the First World War
Paul Gannon
A fully revised and updated account of the author's acclaimed book Inside Room 40
352 pages, 8 Plates, black and white; 20 Illustrations, black and white
| Medios de comunicación | Libros Hardcover Book (Libro con lomo y cubierta duros) |
| Publicado | 1 de septiembre de 2021 |
| Fecha de lanzamiento original | 2020 |
| ISBN13 | 9780750992466 |
| Editores | The History Press Ltd |
| Páginas | 352 |
| Dimensiones | 242 × 167 × 30 mm · 703 g |
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