Mansfield, Edwin. <br/><br/>
Statistics for business and economics :  problems, exercises and case studies. 

 - 5th ed. 
 - New York :  W. W. Norton and Company,  1994. 
 - vii, 286 p.  23 cm. 
<br/><br/><label>ISBN: </label>0393964884 
<br/><br/><label>Dewey Class. No.: </label>519.5 MAN