DeGarmo, E. P., Canada, J. R., & Sullivan, W. G. (1979). Engineering economy (6th ed.). Macmillan.
芝加哥风格引文DeGarmo, Ernest Paul, John R. Canada, 与 William G. Sullivan. Engineering Economy. 6th ed. New York: Macmillan, 1979.
MLA引文DeGarmo, Ernest Paul, et al. Engineering Economy. 6th ed. Macmillan, 1979.
警告：这些引文格式不一定是100％准确.