Niven,Ivan <br/><br/>
An introduction to the theory of numbers / 
Niven,Ivan. 
 - 5th ed. 
 - New Delhi:  Wiley eastern,  1991. 
 - xii,527p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0471625469 
<br/><br/><label>Dewey Class. No.: </label>512.7 HER