Grant, Eugene L.  1897-1996. <br/><br/>
Principles of engineering economy / 
Eugene L. Grant, W. Grant Ireson, Richard S. Leavenworth. 
 - Sixth edition. 
 - New York :  The Ronald Press Company,  c1976. 
 - vi, 624 pages :  illustrations ;  24 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering economy.
<br/><br/><label>Dewey Class. No.: </label>658.15