Keefer, P., & Knack, S. F. (2002). Social polarization, political institutions, and country creditworthiness. World Bank.
Citace podle Chicago (17th ed.)Keefer, Philip, a Stephen F. Knack. Social Polarization, Political Institutions, and Country Creditworthiness. Washington, D.C: World Bank, 2002.
Citace podle MLA (9th ed.)Keefer, Philip, a Stephen F. Knack. Social Polarization, Political Institutions, and Country Creditworthiness. World Bank, 2002.
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