Wonnacott,H.Thomas. <br/><br/>
Introductory statistical for business and economics. 

 - 4th  ed. 
 - new york :  John wiley,  1990. 
 - 305  p. ;    cm. 
<br/><br/>references. 
<br/><br/><label>ISBN: </label>9780471508991 :  $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>statistical.