Kaase, Max, and Kenneth Newton. "Theories of Crisis and Catastrophe, Change and Transformation." Beliefs in Government. : Oxford University Press, 1998-09-24. Oxford Scholarship Online. 2003-11-01. Date Accessed 19 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/0198294727.001.0001/acprof-9780198294726-chapter-2>.
Kaase, M., & Newton, K.(1998-09-24). Theories of Crisis and Catastrophe, Change and Transformation. In Beliefs in Government. : Oxford University Press. Retrieved 19 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/0198294727.001.0001/acprof-9780198294726-chapter-2.
Kaase, Max, and Kenneth Newton. "Theories of Crisis and Catastrophe, Change and Transformation." In Beliefs in Government. : Oxford University Press, 1998-09-24. http://www.oxfordscholarship.com/view/10.1093/0198294727.001.0001/acprof-9780198294726-chapter-2.
Kaase M, Newton K. Theories of Crisis and Catastrophe, Change and Transformation. In: Kaase M, Newton K. Beliefs in Government. Oxford University Press; 1998. http://www.oxfordscholarship.com/view/10.1093/0198294727.001.0001/acprof-9780198294726-chapter-2. Accessed May 19, 2013.