George, Darren. <br/><br/>
SPSS for Windows step by step :  a simple guide and reference, 17. 0 update / 
Darren George, Paul Mallery. 
 - 10th ed. 
 - Boston :  Allyn & Bacon,  c2010. 
 - x, 386 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780205755615 0205755615 
<br/><br/><label>Dewey Class. No.: </label>005.55