WELSH,Dominic <br/><br/>
Codes and Cryptography 

 - New York  Oxfort University press  1989 
 - (ix), 257p 
<br/><br/><label>ISBN: </label>198532873 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Codes <br/>Error Correcting Codes<br/>Cryptography
<br/><br/><label>Dewey Class. No.: </label>1.5436