APA-viite (7. p.)

Campbell, D. E. (2007). A Matter of faith: Religion in the 2004 presidential election. Brookings Institution Press.

Chicago-viite (17. p.)

Campbell, David E. A Matter of Faith: Religion in the 2004 Presidential Election. Washington, D.C: Brookings Institution Press, 2007.

MLA-viite (9. p.)

Campbell, David E. A Matter of Faith: Religion in the 2004 Presidential Election. Brookings Institution Press, 2007.