Παραπομπή APA

Whittaker, D. J. (2004). Terrorists and terrorism: In the contemporary world.

Παραπομπή Chicago Style

Whittaker, David J. Terrorists and Terrorism: In the Contemporary World. London, Routledge, 2004.

Παραπομπή MLA

Whittaker, David J. Terrorists and Terrorism: In the Contemporary World. 2004.