Guy, Richard K. <br/><br/>
Unsolved problems in number theory / 
Richard K. Guy. 
 - xviii, 161 pages :  illustrations ;  24 cm. 
 - Problem books in mathematics .
 - Unsolved problems in intuitive mathematics ;  v. 1 .
 - Guy, Richard K.  Unsolved problems in intuitive mathematics ;  v. 1. .
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0387905936 
<br/><br/><label>LCCN: </label>81014551  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory--Problems, exercises, etc.
<br/><br/><label>LC Class. No.: </label>QA43  QA141  / .G88 vol. 1 
<br/><br/><label>Dewey Class. No.: </label>510.76 s  512.7076