Cita APA (7a ed.)

Sala i Martín, X., & Pinkovskiy, M. (2010). African poverty is falling_ much faster than you think! National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Sala i Martín, Xavier, y Maxim Pinkovskiy. African Poverty Is Falling_ Much Faster than You Think! Cambridge, MA: National Bureau of Economic Research, 2010.

Cita MLA (9a ed.)

Sala i Martín, Xavier, y Maxim Pinkovskiy. African Poverty Is Falling_ Much Faster than You Think! National Bureau of Economic Research, 2010.