Mansfield,Edwin. <br/><br/>
Statistics for business and economics :  methods and applications. 

 - 5th  ed. 
 - new york :  w.w norton company,  1994. 
 - 136  p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>economics.