APA (7 वां संस्करण) प्रशस्ति पत्र

Ruys, T. (2010). "Armed attack" and Article 51 of the UN Charter: Evolutions in customary law and practice. Cambridge University Press.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Ruys, Tom. "Armed Attack" and Article 51 of the UN Charter: Evolutions in Customary Law and Practice. New York: Cambridge University Press, 2010.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Ruys, Tom. "Armed Attack" and Article 51 of the UN Charter: Evolutions in Customary Law and Practice. Cambridge University Press, 2010.

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