Cita APA

Sokol, J. B., & De Wulf, L. (2004). Customs modernization initiatives: Case studies. World Bank.

Citación estilo Chicago

Sokol, José B., y Luc De Wulf. Customs Modernization Initiatives: Case Studies. Washington, DC: World Bank, 2004.

Cita MLA

Sokol, José B., y Luc De Wulf. Customs Modernization Initiatives: Case Studies. World Bank, 2004.