Levin, Jack <br/><br/>
Elementary Statistics in Social Research 

 - Sixth Ed. 
 - USA  HarperCollins College Publishers  1994 
 - xiii, 508 pages; 24 cm. 
<br/><br/> includes index. 
<br/><br/><label>ISBN: </label>0-673-46958-1 
<br/><br/><label>Dewey Class. No.: </label>GR/519.50243/L57