Janda, K., Berry, J. M., & Goldman, J. (2000). The challenge of democracy: Government in America : 1999-2000 update (Sixth edition.). Houghton Mifflin.
芝加哥风格引文Janda, Kenneth, Jeffrey M. Berry, 与 Jerry Goldman. The Challenge of Democracy: Government in America : 1999-2000 Update. Sixth edition. Boston: Houghton Mifflin, 2000.
MLA引文Janda, Kenneth, et al. The Challenge of Democracy: Government in America : 1999-2000 Update. Sixth edition. Houghton Mifflin, 2000.
警告：这些引文格式不一定是100％准确.