Chronology of International Events and Documents. Royal Institute of International Affairs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रChronology of International Events and Documents. Royal Institute of International Affairs.
एमएलए (9वां संस्करण) प्रशस्ति पत्रChronology of International Events and Documents. Royal Institute of International Affairs.
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