APA (7 वां संस्करण) प्रशस्ति पत्र
Conference on African Literature : University of Ife & Heywood, C. (1971). Perspectives on African literature: Selections from the proceedings of the Conference on African Literature held at the University of Ife, 1968. Heinemann.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Conference on African Literature : University of Ife और Christopher Heywood. Perspectives on African Literature: Selections from the Proceedings of the Conference on African Literature Held at the University of Ife, 1968. London: Heinemann, 1971.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Conference on African Literature : University of Ife और Christopher Heywood. Perspectives on African Literature: Selections from the Proceedings of the Conference on African Literature Held at the University of Ife, 1968. Heinemann, 1971.
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