Berkeley's Idealism: A Critical Examination. : Oxford University Press, 2011-06-15. Oxford Scholarship Online. 2011-09-22. Date Accessed 19 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195381467.001.0001/acprof-9780195381467>.
(2011-06-15). Berkeley's Idealism: A Critical Examination. : Oxford University Press. Retrieved 19 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195381467.001.0001/acprof-9780195381467.
Berkeley's Idealism: A Critical Examination. : Oxford University Press, 2011-06-15. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195381467.001.0001/acprof-9780195381467.
Dicker G. Berkeley's Idealism: A Critical Examination. Oxford University Press; 2011. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195381467.001.0001/acprof-9780195381467. Accessed May 19, 2013.