Freund John E <br/><br/>
Elementary business statistics : The modern approach 
Freund John Eand Others 
 - 5 
 - Englewood  Englewood, Prentice Hall  1988 
 - xiii,738 
<br/><br/><label>ISBN: </label>0-13-253196-8 
<br/><br/><label>Source: </label>Textbook