Tyra, M. <br/><br/>
Magical book on quicker maths/M. Tyra 

 - Delhi  BSC Publishing Co. Pvt. Ltd.  2008 
 - 807p. 
<br/><br/><label>ISBN: </label>978-81-904589-2-4 
<br/><br/><label>Dewey Class. No.: </label>510  T98M