Statistical techniques in business and economics 
Mason, Robert D. 
 - 7th ed. 
 -  Richard D. Irwin, Inc.  1990 
 - xiii, 910 pages. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial statistics.
<br/><br/><label>Dewey Class. No.: </label>519.5 M268s 1990