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  • Codes, Ciphers and Secret Writing by Martin Gardner (English) Paperback Book

    • Item No : 166324310312
    • Condition : Brand New
    • Brand : No brand Info
    • Seller : linda2217
    • Current Bid : US $4.90
    • * Item Description

    • Beginning with simple letter substitutions and transposition ciphers, world-famous science writer Martin Gardner explains how to break complicated polyalphabetical ciphers and codes worked with grids, squares, triangles, and charts.
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