APA (7th ed.) Zitazioa
Brookings Institution, ebrary, Inc, & D'Arcy, M. B. (2006). Protecting the homeland, 2006/2007. Brookings Institution Press.
Chicago Style (17th ed.) Zitazioa
Brookings Institution, Inc ebrary, eta Michael B. D'Arcy. Protecting the Homeland, 2006/2007. Washington, D.C.: Brookings Institution Press, 2006.
MLA (9th ed.) Zitazioa
Brookings Institution, et al. Protecting the Homeland, 2006/2007. Brookings Institution Press, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.