Walker, G. (1990). Moral foundations of constitutional thought: Current problems, Augustinian prospects. Princeton University Press.
Lua i Stíl Chicago (17ú heag.)Walker, Graham. Moral Foundations of Constitutional Thought: Current Problems, Augustinian Prospects. Princeton, N.J: Princeton University Press, 1990.
Lua MLA (9ú heag.)Walker, Graham. Moral Foundations of Constitutional Thought: Current Problems, Augustinian Prospects. Princeton University Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.