Pfaffenerger, Roger C. <br/><br/>
Statistical methods  for business and economics 
by Roger C. Pfaffenerger, James H. Patterson. 
 - Homewood, Illinois  Richard D.Irwin, Inc.  1977 
 - xvii, 750p. 
 - Irwin series in quantitative analysis for business .
<br/><br/><label>ISBN: </label>0256017972 
<br/><br/><label>Dewey Class. No.: </label>519.502465  / N77