APA (7th ed.) Citation

Horgan 1974. (2005). The psychology of terrorism. Routledge.

Chicago Style (17th ed.) Citation

Horgan 1974. The Psychology of Terrorism. New York: Routledge, 2005.

MLA (9th ed.) Citation

Horgan 1974. The Psychology of Terrorism. Routledge, 2005.

Warning: These citations may not always be 100% accurate.