Paley, W. (1830). The principles of moral and political philosophy (Boston school ed.). N.H. Whitaker.
Lua i Stíl Chicago (17ú heag.)Paley, William. The Principles of Moral and Political Philosophy. Boston school ed. Boston: N.H. Whitaker, 1830.
Lua MLA (8ú heag.)Paley, William. The Principles of Moral and Political Philosophy. Boston school ed. N.H. Whitaker, 1830.
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