Codes, ciphers, and secret writing /
Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.
| Основен автор: | Gardner, Martin, 1914- |
|---|---|
| Формат: | Книга |
| Език: | English |
| Публикувано: |
New York :
Simon and Schuster,
[1972]
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| Предмети: |
| Резюме: |
Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink. |
|---|---|
| Физически характеристики: |
96 p. illus. 24 cm. |
| ISBN: |
067165201X (Hard) |