Das,Bhubanmohan., <br/><br/>
Prathamik Bijnan-Kosh 
by Bhubanmohan Das 
 - 1st Ed.   Rep. 
 - 275p.:  20cm. 
<br/><br/><label>Subjects--Index Terms: </label>Natural sciences & mathematics 
<br/><br/><label>Dewey Class. No.: </label>500