Covell, C. (1992). The defence of natural law: A study of the ideas of law and justice in the writings of Lon L. Fuller, Michael Oakeshot, F.A. Hayek, Ronald Dworkin, and John Finnis. St. Martin's Press.
Lua i Stíl Chicago (17ú heag.)Covell, Charles. The Defence of Natural Law: A Study of the Ideas of Law and Justice in the Writings of Lon L. Fuller, Michael Oakeshot, F.A. Hayek, Ronald Dworkin, and John Finnis. New York, N.Y: St. Martin's Press, 1992.
Lua MLA (9ú heag.)Covell, Charles. The Defence of Natural Law: A Study of the Ideas of Law and Justice in the Writings of Lon L. Fuller, Michael Oakeshot, F.A. Hayek, Ronald Dworkin, and John Finnis. St. Martin's Press, 1992.
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