ISBN 9780593046418 (0-593-04641-2, 0593046412)

The Emperor's Codes:
Bletchley Park and the Breaking of Japan's Secret Ciphers

by Michael Smith

ISBN	0593046412 / 9780593046418 / 0-593-04641-2
Publisher	Bantam Press
Language	English
Edition	Hardcover

Tags

ciphers codes crypto cryptography cryptology encryption espionage historical history intelligence japan non-fiction popular-science spies war world-war-2 world-war-ii world-war-two ww2 wwii

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