Walker, G. (1990). Moral foundations of constitutional thought: Current problems, Augustinian prospects. Princeton University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWalker, Graham. Moral Foundations of Constitutional Thought: Current Problems, Augustinian Prospects. Princeton, N.J: Princeton University Press, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWalker, Graham. Moral Foundations of Constitutional Thought: Current Problems, Augustinian Prospects. Princeton University Press, 1990.
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