Anson, J., Cadot, O., & Olarreaga, M. (2003). Tariff evasion and customs corruption: Does PSI help. Trade, Development Research Group, World Bank.
Dyfyniad Arddull ChicagoAnson, Jose, Olivier Cadot, and Marcelo Olarreaga. Tariff Evasion and Customs Corruption: Does PSI Help. Washington, D.C: Trade, Development Research Group, World Bank, 2003.
Dyfyniad MLAAnson, Jose, et al. Tariff Evasion and Customs Corruption: Does PSI Help. Trade, Development Research Group, World Bank, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.