Richmond, O. P. (2018). Peace: A Very Short Introduction. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRichmond, Oliver P. Peace: A Very Short Introduction. Oxford University Press, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRichmond, Oliver P. Peace: A Very Short Introduction. Oxford University Press, 2018.
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