Shiller, Robert J. "Psychological Barriers." Macro Markets: Creating Institutions for Managing Society's Largest Economic Risks. : Oxford University Press, 1998-03-12. Oxford Scholarship Online. 2003-11-01. Date Accessed 18 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/0198294182.001.0001/acprof-9780198294184-chapter-2>.
Shiller, R.(1998-03-12). Psychological Barriers. In Macro Markets: Creating Institutions for Managing Society's Largest Economic Risks. : Oxford University Press. Retrieved 18 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/0198294182.001.0001/acprof-9780198294184-chapter-2.
Shiller, Robert J. "Psychological Barriers." In Macro Markets: Creating Institutions for Managing Society's Largest Economic Risks. : Oxford University Press, 1998-03-12. http://www.oxfordscholarship.com/view/10.1093/0198294182.001.0001/acprof-9780198294184-chapter-2.
Shiller RJ. Psychological Barriers. In: Shiller RJ. Macro Markets: Creating Institutions for Managing Society's Largest Economic Risks. Oxford University Press; 1998. http://www.oxfordscholarship.com/view/10.1093/0198294182.001.0001/acprof-9780198294184-chapter-2. Accessed May 18, 2013.