Yan S Y <br/><br/>
Perfect, Amicable and Sociable Numbers: a Computational Approach 

 -  World Scientific  WSPC  1996 
<br/><br/><label>ISBN: </label>9789812819888 
<br/><br/><label>Source: </label>EBOOK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics