Warrender, H. (1970). The political philosophy of Hobbes: His theory of obligation. Clarendon Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWarrender, Howard. The Political Philosophy of Hobbes: His Theory of Obligation. Clarendon Press, 1970.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWarrender, Howard. The Political Philosophy of Hobbes: His Theory of Obligation. Clarendon Press, 1970.
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