Beall, Jc. "Suitable Conditional." Spandrels of Truth. : Oxford University Press, 2009-04-09. Oxford Scholarship Online. 2009-09-01. Date Accessed 25 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199268733.001.0001/acprof-9780199268733-chapter-2>.
Beall, J.(2009-04-09). Suitable Conditional. In Spandrels of Truth. : Oxford University Press. Retrieved 25 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199268733.001.0001/acprof-9780199268733-chapter-2.
Beall, Jc. "Suitable Conditional." In Spandrels of Truth. : Oxford University Press, 2009-04-09. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199268733.001.0001/acprof-9780199268733-chapter-2.
Beall J. Suitable Conditional. In: Beall J. Spandrels of Truth. Oxford University Press; 2009. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199268733.001.0001/acprof-9780199268733-chapter-2. Accessed May 25, 2013.