Barrett, Scott. "The Treaty Participation Game." Environment and Statecraft: The Strategy of Environmental Treaty-Making. : Oxford University Press, 2005-11-10. Oxford Scholarship Online. 2005-10-01. Date Accessed 20 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/0199286094.001.0001/acprof-9780199286096-chapter-7>.
Barrett, S.(2005-11-10). The Treaty Participation Game. In Environment and Statecraft: The Strategy of Environmental Treaty-Making. : Oxford University Press. Retrieved 20 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/0199286094.001.0001/acprof-9780199286096-chapter-7.
Barrett, Scott. "The Treaty Participation Game." In Environment and Statecraft: The Strategy of Environmental Treaty-Making. : Oxford University Press, 2005-11-10. http://www.oxfordscholarship.com/view/10.1093/0199286094.001.0001/acprof-9780199286096-chapter-7.
Barrett S. The Treaty Participation Game. In: Barrett S. Environment and Statecraft: The Strategy of Environmental Treaty-Making. Oxford University Press; 2005. http://www.oxfordscholarship.com/view/10.1093/0199286094.001.0001/acprof-9780199286096-chapter-7. Accessed May 20, 2013.