Sandor, J. <br/><br/>
Handbook of Number Theory Vol, II 
by J. Sandor 
 - London  Kluwer Academic Publishers  2004 
 - 637p. 
<br/><br/>Contents :<br/>1. Perfect number : Old and  
<br/><br/><label>ISBN: </label>1402025467 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory -- hanbook manual etc
<br/><br/><label>Dewey Class. No.: </label>512.73 SAN