Al-Shafi'i, M. M. O., & Moustafa, M. A. (2006). ECOWAS and NIGERIA: Featuring : Amalgamation : Prepared for post graduate diploma degree. Institute of national planning.
Cita Chicago (17th ed.)Al-Shafi'i, Mohammed Muneer'deen Olodo, i Moustafa Ahmed Moustafa. ECOWAS and NIGERIA: Featuring : Amalgamation : Prepared for Post Graduate Diploma Degree. Cairo: Institute of national planning, 2006.
Cita MLA (9th ed.)Al-Shafi'i, Mohammed Muneer'deen Olodo, i Moustafa Ahmed Moustafa. ECOWAS and NIGERIA: Featuring : Amalgamation : Prepared for Post Graduate Diploma Degree. Institute of national planning, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.