Cita APA (7th ed.)

Barro, R. J., & Sala-i-Martin, X. (2004). Economic growth (2nd ed.). MIT Press.

Cita Chicago (17th ed.)

Barro, Robert J., i Xavier Sala-i-Martin. Economic Growth. 2nd ed. Cambridge, MA: MIT Press, 2004.

Cita MLA (9th ed.)

Barro, Robert J., i Xavier Sala-i-Martin. Economic Growth. 2nd ed. MIT Press, 2004.