Geogre, Darren <br/><br/>
SPSS for windows step by step: a simple guide and reference 18.0 update 

 - 11th ed. 
 - Noida  Pearson  385 
<br/><br/><label>ISBN: </label>9789332518124 
<br/><br/><label>Dewey Class. No.: </label>005.437 G239S