Enns, Philip. <br/><br/>
Business statistics :  methods and applications / 
Philip Enns. 
 - Homewood, Ill. :  Richard D. Irwin,  1985. 
 - xxiv, 777 p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0256024464 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Վիճակագրություն<br/>Commercial statistics.