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Provides the history behind codes and ciphers as used in spying and explains how readers themselves can make and use their own secret codes.
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Subjects
Ciphers, Cryptography, Juvenile literatureEdition | Availability |
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1
Codes & ciphers: hundreds of unusual and secret ways to send messages
1993, Betterway Books
in English
- 1st ed.
155870292X 9781558702929
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Book Details
Edition Notes
Includes bibliographical references (p. 105) and index.
Classifications
The Physical Object
ID Numbers
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Feedback?November 15, 2020 | Edited by MARC Bot | import existing book |
December 4, 2010 | Edited by Open Library Bot | Added subjects from MARC records. |
December 10, 2009 | Created by WorkBot | add works page |