Não informado. (1953). Northeast Africa series. American University Field Staff.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Northeast Africa Series. New York: American University Field Staff, 1953.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Northeast Africa Series. American University Field Staff, 1953.
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