APA (7th ed.) Zitazioa

Howlett, M., & M.Ramesh , A. P. (2020). Studying Public Policy: Principles and processes. (4 th ed.). Canada.

Chicago Style (17th ed.) Zitazioa

Howlett, Michael, eta Anthony Perl M.Ramesh. Studying Public Policy: Principles and Processes. 4 th ed. Oxford: Canada, 2020.

MLA (9th ed.) Zitazioa

Howlett, Michael, eta Anthony Perl M.Ramesh. Studying Public Policy: Principles and Processes. 4 th ed. Canada, 2020.