Não informado. (1976). Africa Development. Council for the Development of Economic and Social Research in Africa.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Africa Development. Dakar: Council for the Development of Economic and Social Research in Africa, 1976.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Africa Development. Council for the Development of Economic and Social Research in Africa, 1976.
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