Den Otter, Sandra M. "Sociology and Idealist Social Philosophy." British Idealism and Social Explanation: A Study in Late Victorian Thought. : Oxford University Press, 1996-02-29. Oxford Scholarship Online. 2011-10-03. Date Accessed 24 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198206002.001.0001/acprof-9780198206002-chapter-5>.
Den Otter, S.(1996-02-29). Sociology and Idealist Social Philosophy. In British Idealism and Social Explanation: A Study in Late Victorian Thought. : Oxford University Press. Retrieved 24 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198206002.001.0001/acprof-9780198206002-chapter-5.
Den Otter, Sandra M. "Sociology and Idealist Social Philosophy." In British Idealism and Social Explanation: A Study in Late Victorian Thought. : Oxford University Press, 1996-02-29. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198206002.001.0001/acprof-9780198206002-chapter-5.
Den Otter SM. Sociology and Idealist Social Philosophy. In: Otter SMd. British Idealism and Social Explanation: A Study in Late Victorian Thought. Oxford University Press; 1996. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198206002.001.0001/acprof-9780198206002-chapter-5. Accessed May 24, 2013.