APA aipamena

Portney, K. E. (1986). Approaching public policy analysis: An introduction to policy and program research. Prentice-Hall.

Chicago Style aipamena

Portney, Kent E. Approaching Public Policy Analysis: An Introduction to Policy and Program Research. Englewood Cliffs, N.J: Prentice-Hall, 1986.

MLA aipamena

Portney, Kent E. Approaching Public Policy Analysis: An Introduction to Policy and Program Research. Prentice-Hall, 1986.