Singh, Simon <br/><br/>
Code book  Secret History of Codes and Codebreaking 
  

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 - London  Fourth Estate  2000 
 - xiii,402pgs.;19.3cms. 
<br/><br/> B, Index   
<br/><br/>  
<br/><br/><label>ISBN: </label>1857028899 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crime detection<br/>Cryptography<br/>Ciphers
<br/><br/><label>Dewey Class. No.: </label>327.12 Sin/Cod