American Telephone and Telegraph Company. <br/><br/>
Engineering economy :  a manager's guide to economic decision making / 
Aermerican Telephone and Telegraph Company. 
 - 3rd ed. 
 - New York :  McGraw-Hill,  c1977. 
 - x, 516 p.  ill.  29 cm 
<br/><br/> Updated version of the 2d ed. by American Telephone and Telegraph Company, Engineering Dept.  Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telephone--Finance.<br/>Engineering economy.
<br/><br/><label>Dewey Class. No.: </label>384.6  / 3