1 - 9 of 9 results
Title: Codebreaker: The History of Codes and Ciphers, Author: Stephen Pincock
Title: The Kids' Code and Cipher Book, Author: Nancy Garden
Title: Code and Cipher Puzzles, Author: Mark Fowler
Title: Fascinating Fibonaccis: Mystery and Magic in Numbers, Author: Dale Seymour Publications Secondary
Title: The National Security Agency: Cracking Secret Codes, Author: Connie Colwell Miller
Title: Codes and Sequences, Author: Marion Smoothey
Title: Cryptologists: Life Making and Breaking Codes, Author: Aaron Rosenberg
Title: Hi Tech World: Code Breakers, Author: Ben Hubbard
Title: Alan Turing, Author: Jim Corrigan