DeGarmo, E. Paul 1907- Engineering economy / E. Paul DeGarmo, John R. Canada, William G. Sullivan. - 6th ed. - New York : MacMillan, 1979. - xv, 576 p. : ill. ; 24 cm. Includes bibliography: p. 529-530 and indexes. ISBN: 002328160X Subjects--Topical Terms: Engineering economy.