Cita APA (7th ed.)

Gray. A Free Introduction to Moral Philosophy: The Moral Realist Point of View. Cambridge / Routledge / Oxford.

Cita Chicago (17th ed.)

Gray. A Free Introduction to Moral Philosophy: The Moral Realist Point of View. London / New York: Cambridge / Routledge / Oxford.

Cita MLA (9th ed.)

Gray. A Free Introduction to Moral Philosophy: The Moral Realist Point of View. Cambridge / Routledge / Oxford.