GRAFF,J C <br/><br/>
CRYPTOGRAPHY AND E-COMMERCE:WILEY TECH BRIEF 

 - NEW YORK  Wiley  2001 
 - xviii+222p.,24X18Cms 
<br/><br/><label>ISBN: </label>0471405744 
<br/><br/><label>Dewey Class. No.: </label>621.38196428 G736