HEALEY, Josephy F <br/><br/>
Statistics : A Tool for Social Research 

 - 6th ed. 
 - London :  Wadsworth groups  2002 
 - xxi, 521 P 
<br/><br/><label>ISBN: </label>0-534-55785-6 
<br/><br/><label>Dewey Class. No.: </label>519.5