APA (7th ed.) Citation

O'Brien, D. M. (2005). Constitutional law and politics (6th ed.). W.W. Norton.

Chicago Style (17th ed.) Citation

O'Brien, David M. Constitutional Law and Politics. 6th ed. New York: W.W. Norton, 2005.

MLA (9th ed.) Citation

O'Brien, David M. Constitutional Law and Politics. 6th ed. W.W. Norton, 2005.