APA (7th ed.) Zitazioa
Silber, M. D. (2012). The Al Qaeda factor: Plots against the West. University of Pennsylvania Press.
Chicago Style (17th ed.) Zitazioa
Silber, Mitchell D. The Al Qaeda Factor: Plots Against the West. Philadelphia: University of Pennsylvania Press, 2012.
MLA (9th ed.) Zitazioa
Silber, Mitchell D. The Al Qaeda Factor: Plots Against the West. University of Pennsylvania Press, 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.