APA
Institute of Social Studies, Van Bergeijk P. A. G. & Afesorgbor S. K. (2011). Multi membership and the effectiveness of regional trade agreements in western and southern Africa : a comparative study of ECOWAS and SADC. Hague: ISS International Institute of Social Studies.
Chicago
Institute of Social Studies, Van Bergeijk Peter A G and Afesorgbor Sylvanus Kwaku. 2011. Multi membership and the effectiveness of regional trade agreements in western and southern Africa : a comparative study of ECOWAS and SADC. Hague: ISS International Institute of Social Studies.
Harvard
Institute of Social Studies, Van Bergeijk P. A. G. and Afesorgbor S. K. (2011). Multi membership and the effectiveness of regional trade agreements in western and southern Africa : a comparative study of ECOWAS and SADC. Hague: ISS International Institute of Social Studies.
MLA
Institute of Social Studies, Van Bergeijk Peter A G and Afesorgbor Sylvanus Kwaku. Multi membership and the effectiveness of regional trade agreements in western and southern Africa : a comparative study of ECOWAS and SADC. Hague: ISS International Institute of Social Studies. 2011.