Howlett, M. (2009). Studying public policy: Policy cycles & policy subsystems. Oxford University Pr..
Citazione stile Chigago Style (17a edizione)Howlett, Michael. Studying Public Policy: Policy Cycles & Policy Subsystems. Oxford: Oxford University Pr., 2009.
Citatione MLA (9a ed.)Howlett, Michael. Studying Public Policy: Policy Cycles & Policy Subsystems. Oxford University Pr., 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.