Urmson, J. O. (1994). Aristotle's ethics (1st pub., 6th reprint.). Blackwell.
Cita Chicago Style (17a ed.)Urmson, J. O. Aristotle's Ethics. 1st pub., 6th reprint. Oxford [etc.]: Blackwell, 1994.
Cita MLA (9a ed.)Urmson, J. O. Aristotle's Ethics. 1st pub., 6th reprint. Blackwell, 1994.
Precaución: Estas citas no son 100% exactas.