APA引文
O'Brien, D. M. (2003). Constitutional law and politics (5th ed.). Norton.
芝加哥风格引文
O'Brien, David M. Constitutional Law and Politics. 5th ed. New York: Norton, 2003.
MLA引文
O'Brien, David M. Constitutional Law and Politics. 5th ed. Norton, 2003.
警告：这些引文格式不一定是100％准确.