Title Code games.

Publication Info.

New York : Sterling Pub. Co., [1971]

Copies

Location	Call No.	Status
Manchester, Main Library - Children's Department	J 652	Check Shelf

Description	111 pages : illustrations ; 21 cm
Summary	An introduction to cryptography, a number of code and cipher systems which combine both words and numbers.
Subject	Ciphers -- Juvenile literature.
	Ciphers.
	Cryptography.

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