Rosenberg, R. Robert. <br/><br/>
Business mathematics / 
R. Robert Rosenberg and Harry Lewis. 
 - 7th ed. 
 - New York :  McGraw-Hill,  c 1968. 
 - 576 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>322  322 
<br/><br/><label>ISBN: </label>07-053775-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business mathematics.
<br/><br/><label>Dewey Class. No.: </label>511.8 / R324b