DeGARMO, E. P., SULLIVAN, W. G., & BONTADELLI, J. A. (1989). Engineering economy. -- 8th ed. Macmillan.
芝加哥风格引文DeGARMO, E. Paul, William G. SULLIVAN, 与 James A. BONTADELLI. Engineering Economy. -- 8th Ed. New York: Macmillan, 1989.
MLA引文DeGARMO, E. Paul, et al. Engineering Economy. -- 8th Ed. Macmillan, 1989.
警告：这些引文格式不一定是100％准确.