Cita APA (7th ed.)

Alesina, A., Baqir, R., & Easterly, W. R. (1999). Public goods and ethnic divisions. World Bank.

Cita Chicago (17th ed.)

Alesina, Alberto, Reza Baqir, i William Russell Easterly. Public Goods and Ethnic Divisions. Washington, DC: World Bank, 1999.

Cita MLA (9th ed.)

Alesina, Alberto, et al. Public Goods and Ethnic Divisions. World Bank, 1999.