Schmidt, S. W., Bardes, B. A., & Shelley, M. C. (1999). American government and politics today / Steffen W. Schmidt, Mack C. Shelley, Barbara A. Bardes (1999-2000 edition.). West/Wadworth.
芝加哥风格引文Schmidt, Steffen W., Barbara A. Bardes, 与 Mack C. Shelley. American Government and Politics Today / Steffen W. Schmidt, Mack C. Shelley, Barbara A. Bardes. 1999-2000 edition. Belmont, Calif. ; London: West/Wadworth, 1999.
MLA引文Schmidt, Steffen W., et al. American Government and Politics Today / Steffen W. Schmidt, Mack C. Shelley, Barbara A. Bardes. 1999-2000 edition. West/Wadworth, 1999.
警告：这些引文格式不一定是100％准确.