| Author: | Perret, P.-M. (Paul-Michel), 1861-1893 |
| Subject: | Z, Cryptography |
| Format: | Text |
| Date issued: | 2009 |
| Language: | French |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Les règles de Cicco Simonetta pour le déchiffrement des écritures secrètes [electronic resource] / P.-M. Perret |