Code Breaker Tome 13

Pika

Code:Breaker T13                                

North Country Pr

Code Breaker                                    

Independently published

Codeword Puzzle Book For Adults: Large Print Vol 13 - Code Breaker Puzzle For Adults, Seniors and Elderly With a Mix of Additional ... Marupeke, Calcudoku and Futoshiki.

Taya Bayliss - Code Breaker by E. J. Gore (2013-08-13)

Darby Creek (Tm)

Break the Code                                  

Dover

Break the Code: Cryptography for Beginners      

Random House Studio

The Woman All Spies Fear: Code Breaker Elizebeth Smith Friedman and Her Hidden Life (English Edition)

Brand: Facts on File

Alan Turing: Computing Genius and Wartime Code Breaker

CRC Press

The Cryptoclub: Using Mathematics to Make and Break Secret Codes

CRC Press

The Cryptoclub Workbook: Using Mathematics to Make and Break Secret Codes