Παραπομπή σε μορφή APA (7η εκδ.)

Roberts, A. (2008). The collapse of fortress Bush: The crisis of authority in American government. New York University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Roberts, Alasdair. The Collapse of Fortress Bush: The Crisis of Authority in American Government. New York: New York University Press, 2008.

Παραπομπή σε μορφή MLA (9th εκδ.)

Roberts, Alasdair. The Collapse of Fortress Bush: The Crisis of Authority in American Government. New York University Press, 2008.