DeGarmo Paul E. Engineering economy / E. DeGarmo William G. Sullivan John R. Canada - Seventh edition. - New York : Macmillan Publishing Company , 1984. - xvi , 669 pages : 22 cm. Includes index ISBN: 0023286008 Subjects--Topical Terms: Engineering economy LC Class. No.: TA 177.4 D433 1984 CIRC