Code breakers
Subtitle: from hieroglyphs to hackers
By: by Simon Adams ; consultant Peter Crisp.
Contributors: Chrisp, Peter.
Edition: 1st American ed.
Series: DK secret worlds
Publisher: DK Pub.; DK CHILDREN
Published: 2002
Place of publication: New York
Language: eng
Number of pages: 96
Subjects: Ciphers -- History -- Juvenile literature; Cryptography -- History -- Juvenile literature
Genres: Juvenile literature.
Notes: "A Dorling Kindersley book."
"Includes top websites"--Cover.
Includes index.