Levine, E. L., & Cornwell, E. E. (1971). An introduction to American government (2d ed.). Macmillan.
芝加哥风格引文Levine, Erwin L., 与 Elmer E. Cornwell. An Introduction to American Government. 2d ed. New York: Macmillan, 1971.
MLA引文Levine, Erwin L., 与 Elmer E. Cornwell. An Introduction to American Government. 2d ed. Macmillan, 1971.
警告：这些引文格式不一定是100％准确.