1. L'accumulation à l'échelle mondiale (IFAN, Dakar);Amin,1970
2. Center-Periphery: Some aspects of trade and development theory;Bruno;5th World Congress of the International Economics Association, Tokyo,1977
3. L'Echange inégal (Maspero, Paris);Emmanuel,1969
4. A note on ‘Trade pattern reversals’;Emmanuel;Journal of International Economics,1977
5. Imperialismo y comercio international: El intercambio;Emmanuel,1971