APA aipamena

Dye, T. R. (1998). Understanding public policy (9th ed.). Prentice Hall.

Chicago Style aipamena

Dye, Thomas R. Understanding Public Policy. 9th ed. Upper Saddle River, N.J.: Prentice Hall, 1998.

MLA aipamena

Dye, Thomas R. Understanding Public Policy. 9th ed. Prentice Hall, 1998.