Cita APA (7a ed.)

Hardie, W. F. R. (1980). Aristotle's ethical theory (2nd ed.). Clarendon.

Cita Chicago Style (17a ed.)

Hardie, William Francis Ross. Aristotle's Ethical Theory. 2nd ed. Oxford: Clarendon, 1980.

Cita MLA (9a ed.)

Hardie, William Francis Ross. Aristotle's Ethical Theory. 2nd ed. Clarendon, 1980.