Sen, Nani Lal. <br/><br/>
A critique of the theories of viparyaya /  
Nani Lal Sen. 
 - Kolkata :   Rabindra Bharati University ,   1965. 
 - vii,259p. :   ill.,tables ;   23cm .  
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<br/><br/><label>ISBN: </label> Rs. 15.00 (Hb) 
<br/><br/><label>Subjects--Index Terms: </label>KNOWLEDGE, THEORY OF 
<br/><br/><label>Dewey Class. No.: </label>121  / SEN/C