Books about Ciphers (sorted by popularity)
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Displaying results 1–3
- Mathematical Recreations and Essays W. W. Rouse Ball 572 downloads
- Manual for the Solution of Military Ciphers Parker Hitt 181 downloads
- La Cryptographie, ou, l'art d'écrire en chiffres (French) P. L. Jacob 106 downloads
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Displaying results 1–3