Bemærk: Kan leveres før jul.
Forventes på lager: 20-06-2002
Make this collection of seven ingenious paper gadgets which introduce and explain many of the concepts used in cipher machines. Decode the secret messages and then start to understand how cryptographers try to protect information from prying eyes.
| Forlag | Tarquin Publications |
| Forfattere | Gerald Jenkins, Magdalen Bear |
| Type | Bog |
| Format | Paperback / softback |
| Sprog | Engelsk |
| Udgivelsesdato | 20-06-2002 |
| Første udgivelsesår | 2002 |
| Originalsprog | United Kingdom |
| Sideantal | 32 |
| Indbinding | Paperback / softback |
| Forlag | Tarquin Publications |
| Sideoplysninger | 32 pages |
| Mål | 297 x 210 x 7 |
| ISBN-13 / EAN-13 | 9781899618538 |