Codes and cryptography
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| Main Author: | |
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| Format: | Unknown |
| Published: |
Oxford [Oxfordshire]
Clarendon Press
1988
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| Subjects: | |
| Online Access: | Click Here to View Status and Holdings. |
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Add Tag | Item Description: | Includes index. |
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| Physical Description: | ix, 257 p. 25 cm |
| Bibliography: | Bibliography: p. [243]-252. |
| ISBN: | 0198532881 |
Codes & ciphers a hundreds of unusual and secret ways to send messages