Ferris , Craig F. "Neuroplasticity and Aggression: An Interaction Between Vasopressin and Serotonin." Biology of Aggression. : Oxford University Press, 2005-09-22. Oxford Scholarship Online. 2009-05-01. Date Accessed 21 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195168761.001.0001/acprof-9780195168761-chapter-7>.
Ferris , .(2005-09-22). Neuroplasticity and Aggression: An Interaction Between Vasopressin and Serotonin. In Biology of Aggression. : Oxford University Press. Retrieved 21 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195168761.001.0001/acprof-9780195168761-chapter-7.
Ferris , Craig F. "Neuroplasticity and Aggression: An Interaction Between Vasopressin and Serotonin." In Biology of Aggression. : Oxford University Press, 2005-09-22. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195168761.001.0001/acprof-9780195168761-chapter-7.
Ferris CF. Neuroplasticity and Aggression: An Interaction Between Vasopressin and Serotonin. In: Nelson RJ. Biology of Aggression. Oxford University Press; 2005. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780195168761.001.0001/acprof-9780195168761-chapter-7. Accessed May 21, 2013.