Stallings William <br/><br/>
Cryptography and network security    Principles and practice . 

 - 2 
 -  1999 
<br/><br/><label>Standard No.: </label>86426 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>D6,8(B),942, N9