Cita APA (7a ed.)

Fordyce, D., & Kennedy, T. D. (2003). The elements of moral philosophy, in three books with a brief account of the nature, progress, and origin of philosophy. Liberty Fund.

Cita Chicago Style (17a ed.)

Fordyce, David, y Thomas D. Kennedy. The Elements of Moral Philosophy, in Three Books with a Brief Account of the Nature, Progress, and Origin of Philosophy. Indianapolis: Liberty Fund, 2003.

Cita MLA (8a ed.)

Fordyce, David, y Thomas D. Kennedy. The Elements of Moral Philosophy, in Three Books with a Brief Account of the Nature, Progress, and Origin of Philosophy. Liberty Fund, 2003.