Secret languages : communicating in codes and ciphers /

Describes the history, methods, and types of codes, ciphers, and other ways of communicating privately.

Bibliographic Details

Main Author:	Bielewicz, Julian A.
Format:	Book
Language:	English
Published:	New York : Elsevier/Nelson Books, [1980]
Edition:	1st ed.
Subjects:	Cryptography > Juvenile literature. Ciphers > Juvenile literature. Cryptography. Ciphers.