"Appendix 2 Incorruptibility of the Intellect." Oxford Scholarship Online. 2010-09-01. Oxford University Press. Date of access 21 May. 2013, <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195331479.001.0001/acprof-9780195331479-appendix-2>.
(2010-09-01). Appendix 2 Incorruptibility of the Intellect. Oxford Scholarship Online. Retrieved 21 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195331479.001.0001/acprof-9780195331479-appendix-2.
"Appendix 2 Incorruptibility of the Intellect." Oxford Scholarship Online. 21 May. 2013. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195331479.001.0001/acprof-9780195331479-appendix-2.
Appendix 2 Incorruptibility of the Intellect. In: McGinnis J. Avicenna. Oxford University Press; 2010. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195331479.001.0001/acprof-9780195331479-appendix-2. Accessed May 21, 2013.