Não informado. (1954). International Relations. David Davies Memorial Institute of International Studies.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Relations. London: David Davies Memorial Institute of International Studies, 1954.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Relations. David Davies Memorial Institute of International Studies, 1954.
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