Niven, Ivan. <br/><br/>
Introduction to the theory of numbers 

 - 5th edition. 
 - New York :  John Wiely Publisher,  2007 
 - 529. 
<br/><br/><label>ISBN: </label>9971513013  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra
<br/><br/><label>Dewey Class. No.: </label>512.7  / NIV