Vaswani, J P <br/><br/>
Say No to Negatives 

 - 3th ed.  
 - Pune  Gita Publishing House  2014 
 - 194p 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>9789380743554  190 
<br/><br/><label>Dewey Class. No.: </label>O61.3  / V449