Aggrawal, R.S.  . <br/><br/>
Modern approach to non vebal reasoning /  
by R.S. Aggrawal. 
 - enl. ed /  
 - New Delhi :   S.Chand & Co. Ltd. ,   2001 
 - 431p :  
<br/><br/><label>ISBN: </label>81-219-0553-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Symbols 
<br/><br/><label>Dewey Class. No.: </label>S:44  / O1