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0-9
Cryptography
(4)
Mathematical Recreations and Essays [electronic resource] / W. W. Rouse Ball
Les règles de Cicco Simonetta pour le déchiffrement des écritures secrètes [electronic resource] / Cicco Simonetta
La Cryptographie, ou, l'art d'écrire en chiffres [electronic resource] / P. L. Jacob
Manual for the Solution of Military Ciphers [electronic resource] / Parker Hitt
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