Cita APA (7a ed.)

Mackie, J. L. (1980). Hume's moral theory. Routledge & Kegan Paul.

Cita Chicago Style (17a ed.)

Mackie, John Leslie. Hume's Moral Theory. London [etc.]: Routledge & Kegan Paul, 1980.

Cita MLA (9a ed.)

Mackie, John Leslie. Hume's Moral Theory. Routledge & Kegan Paul, 1980.