Fitzgibbons, Athol. "Utility Versus Virtue." Adam Smith's System of Liberty, Wealth, and Virtue: The Moral and Political Foundations of The Wealth of Nations. : Oxford University Press, 1997-11-13. Oxford Scholarship Online. 2003-11-01. Date Accessed 24 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/0198292880.001.0001/acprof-9780198292883-chapter-4>.
Fitzgibbons, A.(1997-11-13). Utility Versus Virtue. In Adam Smith's System of Liberty, Wealth, and Virtue: The Moral and Political Foundations of The Wealth of Nations. : Oxford University Press. Retrieved 24 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/0198292880.001.0001/acprof-9780198292883-chapter-4.
Fitzgibbons, Athol. "Utility Versus Virtue." In Adam Smith's System of Liberty, Wealth, and Virtue: The Moral and Political Foundations of The Wealth of Nations. : Oxford University Press, 1997-11-13. http://www.oxfordscholarship.com/view/10.1093/0198292880.001.0001/acprof-9780198292883-chapter-4.
Fitzgibbons A. Utility Versus Virtue. In: Fitzgibbons A. Adam Smith's System of Liberty, Wealth, and Virtue: The Moral and Political Foundations of The Wealth of Nations. Oxford University Press; 1997. http://www.oxfordscholarship.com/view/10.1093/0198292880.001.0001/acprof-9780198292883-chapter-4. Accessed May 24, 2013.