Howlett, M., & M.Ramesh , A. P. (2020). Studying Public Policy: Principles and processes. (4 th ed.). Canada.
Chicago-čujuhus (17. p.)Howlett, Michael, juo Anthony Perl M.Ramesh. Studying Public Policy: Principles and Processes. 4 th ed. Oxford: Canada, 2020.
MLA-čujuhus (9. p.)Howlett, Michael, juo Anthony Perl M.Ramesh. Studying Public Policy: Principles and Processes. 4 th ed. Canada, 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.