Sobel, R. (1968). The great bull market: Wall Street in the 1920s ([1st ed.].). Norton.
芝加哥风格引文Sobel, Robert. The Great Bull Market: Wall Street in the 1920s. [1st ed.]. New York: Norton, 1968.
MLA引文Sobel, Robert. The Great Bull Market: Wall Street in the 1920s. [1st ed.]. Norton, 1968.
警告：这些引文格式不一定是100％准确.