Nelson, David <br/><br/>
Penguin dictionary of mathematics / 
David Nelson. 
 - 4th 
 - England :  Penguin Books,  2008. 
 - 472 p.:   ill.  20 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-0-141-03023-4 
<br/><br/><label>LC Class. No.: </label>510.3 P37 c2008