APA (7th ed.) Zitazioa

(1988). The threat of terrorism. Westview Pr.

Chicago Style (17th ed.) Zitazioa

The Threat of Terrorism. Boulder, Colo: Westview Pr, 1988.

MLA (9th ed.) Zitazioa

The Threat of Terrorism. Westview Pr, 1988.