Lua APA (7ú heag.)

Hill, M., & Frederic Varone. (2021). The Public Policy Progress (8th edition.). Routledge.

Lua i Stíl Chicago (17ú heag.)

Hill, Michael, agus Frederic Varone. The Public Policy Progress. 8th edition. New York: Routledge, 2021.

Lua MLA (9ú heag.)

Hill, Michael, agus Frederic Varone. The Public Policy Progress. 8th edition. Routledge, 2021.

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