Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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