APA aipamena

Keefer, P., & Knack, S. F. (2002). Social polarization, political institutions, and country creditworthiness. World Bank.

Chicago Style aipamena

Keefer, Philip, and Stephen F. Knack. Social Polarization, Political Institutions, and Country Creditworthiness. Washington, D.C: World Bank, 2002.

MLA aipamena

Keefer, Philip, and Stephen F. Knack. Social Polarization, Political Institutions, and Country Creditworthiness. World Bank, 2002.