Cita APA (7a ed.)
O'Brien, D. M. (2003). Constitutional law and politics (5th ed.). Norton.
Cita Chicago Style (17a ed.)
O'Brien, David M. Constitutional Law and Politics. 5th ed. New York: Norton, 2003.
Cita MLA (9a ed.)
O'Brien, David M. Constitutional Law and Politics. 5th ed. Norton, 2003.
Precaución: Estas citas no son 100% exactas.