Secret languages
Subtitle: communicating in codes and ciphers
By: Julian A. Bielewicz.
Edition: 1st ed.
Publisher: Elsevier/Nelson Books
Published: 1980
Place of publication: New York
Language: eng
Number of pages: 128
Subjects: Cryptography -- Juvenile literature.; Ciphers -- Juvenile literature.; Cryptography.; Ciphers.
Description: Describes the history, methods, and types of codes, ciphers, and other ways of communicating privately.
Notes: British ed. published under title: Secret language.
Includes index.