Bullinger, Clarence E. <br/><br/>
Engineering economy / 
[by] Clarence, E. Bullinger. 
 - 3rd ed. 
 - New York :  McGraw-Hill,  [c1958]. 
 - xi, 379 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering economy.