Graff, Jon C., <br/><br/>
Crytography and E-Commerce 

 - New York :  John Wiley & Sonc Inc  c2001. 
 - xviii, 221 p.:  [109] 
<br/><br/><label>ISBN: </label>0471405744 
<br/><br/><label>Dewey Class. No.: </label>005.82  / GRA/CRY