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Gilbert, Adrian.

Codes and ciphers / Adrian Gilbert. -- - Buffalo : Firefly Books, 2009, c2008. - 32 p. : ill. (chiefly col.). -- - Spy files .

Includes index.

Discusses the difference between codes and ciphers, common codes and ciphers that have been used during wars, and how to create simple ciphers.

1554075734 (pbk.) 9781554075737 (pbk.)


Ciphers
Cryptography

652/.8