Igue, O. J., & Schumacher, S. (1999). Towards a better regional approach to development in West Africa: Conclusions of the special event of Sahel and West Africa Club, Accra (Ghana), 20-21 May 2002. OECD.
芝加哥风格引文Igue, Ogunsola John, 与 Sunhilt Schumacher. Towards a Better Regional Approach to Development in West Africa: Conclusions of the Special Event of Sahel and West Africa Club, Accra (Ghana), 20-21 May 2002. Paris, France: OECD, 1999.
MLA引文Igue, Ogunsola John, 与 Sunhilt Schumacher. Towards a Better Regional Approach to Development in West Africa: Conclusions of the Special Event of Sahel and West Africa Club, Accra (Ghana), 20-21 May 2002. OECD, 1999.
警告：这些引文格式不一定是100％准确.