Hedderson, John    <br/><br/>
SPSS made simple /  
John Hedderson, Melinda Fisher    
 - 2nd. ed.    
 - Belmont, California  Wadworth Publishing,   c1993.     
 - xv, 283p.:   ill.;   24 cm.    
<br/><br/> Includes bibliography     Includes index    
<br/><br/><label>ISBN: </label>0534199925    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences---Statistical methods--Computer programs   <br/>SPSS (Computer file)