Datta, Srilekha . <br/><br/>
The ontology of negation /  
Srilekha Datta. 
 - Calcutta :   Jadavpur University ,   1991. 
 - 113p. ;   18cm. 
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> Rs. 70.00 (PBK) 
<br/><br/><label>Subjects--Index Terms: </label>ONTOLOGY 
<br/><br/><label>Dewey Class. No.: </label>111  / DAT/O