Mel, H. X. and Baker, Doris. <br/><br/>
Cryptography decrypted   

 - Boston  Addison-Wesley  2001 
 - xx,352p. Bibl. Index. 
<br/><br/> "Purchased under NBHM grant for the year 2001-2002".   
<br/><br/><label>ISBN: </label>0201616475 
<br/><br/><label>Dewey Class. No.: </label>518.1  / M517.CD