Riggs, Jim. <br/><br/>
Engineering economics / 
James L. Riggs, Thomas M. West. 
 - 3rd ed. 
 - New York :  McGraw-Hill,  c1986. 
 - xxiii, 879 p. :  ill. ;  24 cm. 
 - McGraw-Hill series in industrial engineering and management science. .
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references : p. 829-831. 
<br/><br/><label>ISBN: </label>007052873X(cased) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering economics.<br/>Managerial economics.