Schelin, Charles W. <br/><br/>
Mathematical analysis for business and economics / 
Charles W. Schelin and David W. Bange 
 - 2nd ed. 
 - Boston :  PWS-Kent Publishing Company, 1988 
 - ix, 601p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0534914934