Dyfyniad APA

Brookings Institution, ebrary, Inc, & D'Arcy, M. B. (2006). Protecting the homeland, 2006/2007. Brookings Institution Press.

Dyfyniad Arddull Chicago

Brookings Institution, Inc ebrary, and Michael B. D'Arcy. Protecting the Homeland, 2006/2007. Washington, D.C.: Brookings Institution Press, 2006.

Dyfyniad MLA

Brookings Institution, et al. Protecting the Homeland, 2006/2007. Brookings Institution Press, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.