Cita APA (7a ed.)

Alesina, A., & Spolaore, E. (2003). The Size of nations. MIT Press.

Cita Chicago Style (17a ed.)

Alesina, Alberto, y Enrico Spolaore. The Size of Nations. Cambridge [etc.]: MIT Press, 2003.

Cita MLA (9a ed.)

Alesina, Alberto, y Enrico Spolaore. The Size of Nations. MIT Press, 2003.