APA
Cadot O., De Melo J., Portigal - Perez A., The world bank & Development Research Group. (2006). Rules of origin for preferential trading arrangements. Washington, DC: The World Bank, Development Research Group.
Chicago
Cadot Oliver, De Melo Jaime, Portigal - Perez Alberto, The world bank and Development Research Group. 2006. Rules of origin for preferential trading arrangements. Washington, DC: The World Bank, Development Research Group.
Harvard
Cadot O., De Melo J., Portigal - Perez A., The world bank and Development Research Group. (2006). Rules of origin for preferential trading arrangements. Washington, DC: The World Bank, Development Research Group.
MLA
Cadot Oliver, De Melo Jaime, Portigal - Perez Alberto, The world bank and Development Research Group. Rules of origin for preferential trading arrangements. Washington, DC: The World Bank, Development Research Group. 2006.