Keller, Gerald. <br/><br/>
Essentials of business statistics :  a systematic approach. 

 - California :  Wadsworth Publishing Company,  1991. 
 - xiv, 592 p.  24 cm. 
<br/><br/><label>ISBN: </label>97805341467664 
<br/><br/><label>Dewey Class. No.: </label>519.5 KEL