List, Christian, and Philip Pettit. "The Conditions of Agency." Group Agency: The Possibility, Design, and Status of Corporate Agents. : Oxford University Press, 2011-04-01. Oxford Scholarship Online. 2011-05-01. Date Accessed 19 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199591565.001.0001/acprof-9780199591565-chapter-2>.
List, C., & Pettit, P.(2011-04-01). The Conditions of Agency. In Group Agency: The Possibility, Design, and Status of Corporate Agents. : Oxford University Press. Retrieved 19 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199591565.001.0001/acprof-9780199591565-chapter-2.
List, Christian, and Philip Pettit. "The Conditions of Agency." In Group Agency: The Possibility, Design, and Status of Corporate Agents. : Oxford University Press, 2011-04-01. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199591565.001.0001/acprof-9780199591565-chapter-2.
List C, Pettit P. The Conditions of Agency. In: List C, Pettit P. Group Agency: The Possibility, Design, and Status of Corporate Agents. Oxford University Press; 2011. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199591565.001.0001/acprof-9780199591565-chapter-2. Accessed May 19, 2013.