Secret Messages : Concealment Codes and Other Types of Ingenious Communication
by William S. Butler, L. Douglas Keeney Hardcover 2001
- Author: William S. Butler, L. Douglas Keeney
- ISBN 13: 9780684869988
- ISBN 10: 0684869985
- Publication Year: 2001
- Language: English
Specifications
| Index-10 | 0684869985 |
|---|---|
| Index-13 | 9780684869988 |
| Language | English |
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