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Singh, Simon.

The code book : the secret history of codes and code-breaking / Simon Singh. - London : Fourth Estate, 2000, c1999. - 400 p. : ill. ; 20 cm.

Originally published: 1999.

ISBN: 9781857028898 (pbk.)

Nat. Bib. No.: GBA0X5928

Subjects--Topical Terms:
Cryptography.
Cryptography--History.
Ciphers.
Data encryption (Computer science)
Confidential communications.

LC Class. No.: Z104

Dewey Class. No.: 652.8