Cita APA (7a ed.)

Hardie, W. F. R. (1980). Aristotle's ethical theory (Second edition.). Clarendon Press.

Cita Chicago Style (17a ed.)

Hardie, William Francis Ross. Aristotle's Ethical Theory. Second edition. Oxford: Clarendon Press, 1980.

Cita MLA (9a ed.)

Hardie, William Francis Ross. Aristotle's Ethical Theory. Second edition. Clarendon Press, 1980.