APA (7th ed.) Zitazioa
William F. Shughart, R. D. T. Policy Challenges and Political Responses: Public Choice Perspectives on the Post-9/11 World. Springer.
Chicago Style (17th ed.) Zitazioa
William F. Shughart, Robert D. Tollison. Policy Challenges and Political Responses: Public Choice Perspectives on the Post-9/11 World. Nueva York, EUA: Springer.
MLA (9th ed.) Zitazioa
William F. Shughart, Robert D. Tollison. Policy Challenges and Political Responses: Public Choice Perspectives on the Post-9/11 World. Springer.
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