Cita APA (7a ed.)

De Wulf, L., & Sokol, J. B. (2012). Customs Modernization Handbook. Washington, DC: World Bank.

Cita Chicago Style (17a ed.)

De Wulf, Luc, y José B. Sokol. Customs Modernization Handbook. Washington, DC: World Bank, 2012.

Cita MLA (9a ed.)

De Wulf, Luc, y José B. Sokol. Customs Modernization Handbook. Washington, DC: World Bank, 2012.