George Darren <br/><br/>
SPSS For Windows : Step by Step  a simple guide & reference 

 - 6 
 - New Delhi :  Pearson,  2014 
 - 386p. : 
<br/><br/><label>ISBN: </label>9789332518124 
<br/><br/><label>Dewey Class. No.: </label>005.437 GEO