Cita APA (7a ed.)

MacKinnon, D. M. (1957). A study in ethical theory. Adam & Charles Black.

Cita Chicago Style (17a ed.)

MacKinnon, Donald M. A Study in Ethical Theory. London: Adam & Charles Black, 1957.

Cita MLA (9a ed.)

MacKinnon, Donald M. A Study in Ethical Theory. Adam & Charles Black, 1957.