Richtmeyer, Cleon C., 1903- <br/><br/>
Business mathematics / 
Cleon C. Richtmeyer, Judson W. Foust. 
 - 4th ed 
 - New York :  McGraw-Hill,  c1958. 
 - xii, 412 p. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business mathematics