APA (7th ed.) Zitazioa

Nagel, S. S. (2002). Handbook of public policy evaluation. Sage Publications.

Chicago Style (17th ed.) Zitazioa

Nagel, Stuart S. Handbook of Public Policy Evaluation. Thousand Oaks, Calif.: Sage Publications, 2002.

MLA (9th ed.) Zitazioa

Nagel, Stuart S. Handbook of Public Policy Evaluation. Sage Publications, 2002.