Guy, Richard K. <br/><br/>
Unsolved problems in number theory / 
Richard Guy. 
 - [3rd ed.]. 
 - xviii, 437 p. :  ill. ;  24 cm. 
 - Problem books in mathematics .
<br/><br/>
<br/><br/><label>ISBN: </label>0387208607 (acid-free paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory<br/>Sayı teorisi	
<br/><br/><label>LC Class. No.: </label>QA241  / .G87 2004