Byers, M. (1999). Custom, power and the power of rules: International relations and customary international law. Cambridge University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रByers, Michael. Custom, Power and the Power of Rules: International Relations and Customary International Law. Cambridge: Cambridge University Press, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रByers, Michael. Custom, Power and the Power of Rules: International Relations and Customary International Law. Cambridge University Press, 1999.
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