Portney, K. E. (1986). Approaching public policy analysis: An introduction to policy and program research. Prentice-Hall.
芝加哥风格引文Portney, Kent E. Approaching Public Policy Analysis: An Introduction to Policy and Program Research. Englewood Cliffs, N.J: Prentice-Hall, 1986.
MLA引文Portney, Kent E. Approaching Public Policy Analysis: An Introduction to Policy and Program Research. Prentice-Hall, 1986.
警告：这些引文格式不一定是100％准确.