Mansfield, Edwin. <br/><br/>
Statistics for business and economics :  problems, exercises, and case studies / 
Edwin Mansfield. 
 - 5th ed. 
 - New York :  W. W. Norton,  1994. 
 - vii,344  p. 
<br/><br/><label>ISBN: </label>0393964882 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business statistics.