Chopra, Pran. <br/><br/>
The challenge of Bangla Desh /  
NULL. 
 - /   . 
 - NULL :   Popular Prakashan ,   1971. 
 - NULL :   grap,calculus and tables ;   NULL  1 CD .  
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> RS0.00 (Pb)