Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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