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Adams, Simon.
Code breakers : from hieroglyphs to hackers / Code breakers by Simon Adams ; consultant, Peter Crisp. - 1st American ed. - New York, NY : DK Publishing, 2002. - 96 p. : ill. (some col.) ; 20 cm. - Secret worlds .
"Includes top websites"--Cover.
Includes index.
ISBN:
078948529X : $14.95 0789485303 (pbk.) 0789485303
Subjects--Topical Terms:
Ciphers
Cryptography