APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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