Freund, John E <br/><br/>
Elementary business statistics :  the modern approach / 
John E. Freund, Frank J. Williams, Benjamin M. Perles. 
 - 6th ed 
 - London :  Prentice Hall International,  c1997. 
 - xviii, 953 p. : ill. 
<br/><br/> Includes bibliography and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial statistics