Guy, Richard K. <br/><br/>
Unsolved problems in number theory 

 - 3rd 
 - New York  Springer  2004 
 - xviii, 437p.  24cm. 
<br/><br/><label>ISBN: </label>9780387208602 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NUMBER THEORY
<br/><br/><label>Dewey Class. No.: </label>512.7  / GUY