Smith, Nicholas J. J. "Degree of Belief is Expected Truth Value." Cuts and Clouds: Vaguenesss, its Nature, and its Logic. : Oxford University Press, 2010-02-11. Oxford Scholarship Online. 2010-05-01. Date Accessed 21 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199570386.001.0001/acprof-9780199570386-chapter-29>.
Smith, N.(2010-02-11). Degree of Belief is Expected Truth Value. In Cuts and Clouds: Vaguenesss, its Nature, and its Logic. : Oxford University Press. Retrieved 21 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199570386.001.0001/acprof-9780199570386-chapter-29.
Smith, Nicholas J. J. "Degree of Belief is Expected Truth Value." In Cuts and Clouds: Vaguenesss, its Nature, and its Logic. : Oxford University Press, 2010-02-11. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199570386.001.0001/acprof-9780199570386-chapter-29.
Smith NJJ. Degree of Belief is Expected Truth Value. In: Dietz R, Moruzzi S. Cuts and Clouds: Vaguenesss, its Nature, and its Logic. Oxford University Press; 2010. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199570386.001.0001/acprof-9780199570386-chapter-29. Accessed May 21, 2013.