Cita APA (7th ed.)

Porto, G. G. (2004). Informal export barriers and poverty. World Bank.

Cita Chicago (17th ed.)

Porto, Guido G. Informal Export Barriers and Poverty. Washington, D.C: World Bank, 2004.

Cita MLA (9th ed.)

Porto, Guido G. Informal Export Barriers and Poverty. World Bank, 2004.