Piper, Fred C. <br/><br/>
Cryptography: a very short introduction 
Fred  Piper 
 - Oxford ; New York  : Oxford University Press  2002. 
 - 142 p.   : ill.  18 cm. 
<br/><br/> ncludes bibliographical references and index 
<br/><br/> P.B 
<br/><br/><label>ISBN: </label>0192803158 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cryptography.
<br/><br/><label>Dewey Class. No.: </label>652.8  / PIP