Sarkar, Sandipana. <br/><br/>
Negation and negative facts : their indispensability /  
Sandipana  Sarkar. 
 - /   . 
 - Kolkata :   Indiana ,   2002. 
 - 259p. :   ills., ;   24cm  CD .  
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label> RS195.00 (Pb) 
<br/><br/><label>Subjects--Index Terms: </label>NEGATION-LOGIC 
<br/><br/><label>Dewey Class. No.: </label>160  / SAR/N