Codes, ciphers, and secret writing.
by Gardner, Martin.
Material type:
BookPublisher: New York : Simon & Schuster, 1972Description: 96 p. : ill.ISBN: 067165201X (lib. bdg.).Subject(s): Cryptography | CiphersDDC classification: 652 Summary: Explains in simple terms how to encode and decode messages in various ciphers, and gives formulas for invisible ink.
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Navigator | 652.8 GAR (Browse shelf) | Available |
Includes bibliographical references.
Explains in simple terms how to encode and decode messages in various ciphers, and gives formulas for invisible ink.
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