APA (7th ed.) Citation

DeGARMO, E., SULLIVAN, W. G., & CANADA, J. R. (1984). Engineering economy.-- ed.7. Macmillan.

Chicago Style (17th ed.) Citation

DeGARMO, E.Paul, William G. SULLIVAN, and John R. CANADA. Engineering Economy.-- Ed.7. New York: Macmillan, 1984.

MLA (9th ed.) Citation

DeGARMO, E.Paul, et al. Engineering Economy.-- Ed.7. Macmillan, 1984.