NIVEN, Ivan. <br/><br/>
An Introduction To The Theory Of Numbers 

 - 5th. ed 
 - Sri Lanka  New york John Wiley & Sons  2006 
 - xiv, 530p. 
<br/><br/><label>ISBN: </label>9971-51-301-3 
<br/><br/><label>Dewey Class. No.: </label>512.7