Fletcher, G. P. Defending humanity: When force is justified and why. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFletcher, George P. Defending Humanity: When Force Is Justified and Why. Oxford: Oxford University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFletcher, George P. Defending Humanity: When Force Is Justified and Why. Oxford University Press.
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