Graff, Jon C. <br/><br/>
Crytography and e-commerce  a wiley tech brief 

 - New York  John Wiley  2001 
 - xviii,222p. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Cryptography<br/>Electronic Commerce
<br/><br/><label>Dewey Class. No.: </label>658.84  / G61C