George, Darren. <br/><br/>
SPSS for Windows step by step :  a simple guide and reference 18.0 update / 
Darren George, Paul Mallery. 
 - 11th ed. 
 - New Delhi :  Pearson,  c2014. 
 - x, 386 p. : 
<br/><br/><label>ISBN: </label>9780205011247 (alk. paper) 9789332518124 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods--Computer programs.
<br/><br/><label>Dewey Class. No.: </label>519.2  / GEO