Cita APA (7th ed.)

Dollar, D., & Levin, V. (2004). The increasing selectivity of foreign aid, 1984-2002. World Bank.

Cita Chicago (17th ed.)

Dollar, David, i Victoria Levin. The Increasing Selectivity of Foreign Aid, 1984-2002. [Washington, D.C: World Bank, 2004.

Cita MLA (9th ed.)

Dollar, David, i Victoria Levin. The Increasing Selectivity of Foreign Aid, 1984-2002. World Bank, 2004.