Gramlich, E. M. (1981). Benefit-cost analysis of government programs. Prentice-Hall.
芝加哥风格引文Gramlich, Edward M. Benefit-cost Analysis of Government Programs. Englewood Cliffs, N.J.: Prentice-Hall, 1981.
MLA引文Gramlich, Edward M. Benefit-cost Analysis of Government Programs. Prentice-Hall, 1981.
警告：这些引文格式不一定是100％准确.