Coulter, E. M. (1991). Principles of politics and government (4th.ed.). Allyn and Bacon.
芝加哥风格引文Coulter, Edwin M. Principles of Politics and Government. 4th.ed. Dubuque: Allyn and Bacon, 1991.
MLA引文Coulter, Edwin M. Principles of Politics and Government. 4th.ed. Allyn and Bacon, 1991.
警告:这些引文格式不一定是100%准确.