DAS, BHUBON MOHAN. <br/><br/>
BIGYAN KOSH 

 - [s.l:  s.n.]  1969. 
 - 181.:  20CM. 
<br/><br/><label>Subjects--Index Terms: </label>Natural sciences & mathematics 
<br/><br/><label>Dewey Class. No.: </label>500 DAS