APA-referens (7:e uppl.)
Roberts, A. (2008). The collapse of fortress Bush: The crisis of authority in American government. New York University Press.
Chicago-referens (17:e uppl.)
Roberts, Alasdair. The Collapse of Fortress Bush: The Crisis of Authority in American Government. New York: New York University Press, 2008.
MLA-referens (9:e uppl.)
Roberts, Alasdair. The Collapse of Fortress Bush: The Crisis of Authority in American Government. New York University Press, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.