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Spy Codes and Ciphers (The Secret World of Spies) Susan K. Mitchell
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Spy Codes and Ciphers (The Secret World of Spies)
Susan K. Mitchell
Can flashing lights send out a secret message? Did a famous spy use sketches of butterflies to hide messages? Can a digital photo hide a secret code? For centuries, spies have used many different ways to pass secret information. Codes and ciphers keep information safe from the enemy. Author Susan K. Mitchell uncovers the secrets to the amazing world of spy codes and ciphers.
| Mediji | Grāmatas Paperback Book (Grāmata ar mīksto vāku un līmēto muguru) |
| Izlaists | 2012. gada 16. janvāris |
| ISBN13 | 9781598453539 |
| Izdevēji | Enslow Pub Inc |
| Lapas | 48 |
| Izmēri | 188 × 225 × 3 mm · 127 g |
| Valoda | Angļu |
