The kids' code and cipher book /

Presents a variety of codes and ciphers and includes messages to encode and decode, nearly all of which are part of a story.

Bibliographic Details

Main Author:	Garden, Nancy
Format:	Book
Language:	English
Published:	New York, N.Y. : Holt, Rinehart, and Winston, [1981]
Subjects:	Ciphers > Juvenile literature. Ciphers.