Thakur, Rajesh Kumar <br/><br/>
251 amazing facts of mathematics 

 - 1st edition 
 - New Delhi  Ocean books pvt. ltd.  2012 
 - 144p. 
<br/><br/><label>ISBN: </label>9788184301342 
<br/><br/><label>Dewey Class. No.: </label>510  T326T