GEORGE DARREN <br/><br/>
SPSS FOR WINDOWS STEP BY STEP A SIMPLE GUIDE AND REFERENC 

 - (7th ed.) 
 -  Allyn & Bacon  2007 
 - 386 : p. : cm. ; 28 
<br/><br/><label>Dewey Class. No.: </label>519.5 GEO