Lincoln, Andrew. "The Human Abstract." Spiritual History: A Reading of William Blake's Vala or The Four Zoas. : Oxford University Press, 1996-01-25. Oxford Scholarship Online. 2011-10-03. Date Accessed 21 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198183143.001.0001/acprof-9780198183143-chapter-7>.
Lincoln, A.(1996-01-25). The Human Abstract. In Spiritual History: A Reading of William Blake's Vala or The Four Zoas. : Oxford University Press. Retrieved 21 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198183143.001.0001/acprof-9780198183143-chapter-7.
Lincoln, Andrew. "The Human Abstract." In Spiritual History: A Reading of William Blake's Vala or The Four Zoas. : Oxford University Press, 1996-01-25. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198183143.001.0001/acprof-9780198183143-chapter-7.
Lincoln A. The Human Abstract. In: Lincoln A. Spiritual History: A Reading of William Blake's Vala or The Four Zoas. Oxford University Press; 1996. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198183143.001.0001/acprof-9780198183143-chapter-7. Accessed May 21, 2013.