Das, Nirmal  . <br/><br/>
Bhasha paricchhed /  
Nirmal Das. 
 - Kolkata :   Sahitya Loke ,   1995. 
 - 134p. :   ill.,figs.,tables ;   20cm .  
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<br/><br/><label>ISBN: </label> Rs. 40.00 (Hb) 
<br/><br/><label>Subjects--Index Terms: </label>BENGALI LITERARY 
<br/><br/><label>Dewey Class. No.: </label>491.44  / DAS/B