Dyfyniad APA

Knill, C., & Tosun Jale. (2020). Public policy: A new introduction (2nd ed.). Macmillan international higher education.

Dyfyniad Arddull Chicago

Knill, Christoph, and Tosun Jale. Public Policy: A New Introduction. 2nd ed. London: Macmillan international higher education, 2020.

Dyfyniad MLA

Knill, Christoph, and Tosun Jale. Public Policy: A New Introduction. 2nd ed. Macmillan international higher education, 2020.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.