Nathason Melvyn B. <br/><br/>
Elementary Methods in Number Theory 
/ by Melvyn B.Nathanson 
 - New York  Springer  2000 
 - 513p. 
<br/><br/><label>ISBN: </label>0387989129 
<br/><br/><label>Dewey Class. No.: </label>512.7  / NAT/E