Trefftzs, Kenneth Lewis. <br/><br/>
Mathematics of business, accounting, and finance / 
Kenneth Lewis Trefftzs and E. Justin Hills. 
 - 1st ed. 
 - New York :  Harper & Bros,  1956. 
 - xii, 591 p. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>337  337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business mathematics.
<br/><br/><label>Dewey Class. No.: </label>511.8 / J716m