Gallup, G. H., & Rae, S. F. (1940). The pulse of democracy: The public-opinion poll and how it works. Simon and Schuster.
芝加哥风格引文Gallup, George H., 与 Saul Forbes Rae. The Pulse of Democracy: The Public-opinion Poll and How It Works. New York: Simon and Schuster, 1940.
MLA引文Gallup, George H., 与 Saul Forbes Rae. The Pulse of Democracy: The Public-opinion Poll and How It Works. Simon and Schuster, 1940.
警告：这些引文格式不一定是100％准确.