Sowell, T. (1987). A conflict of visions (First Quill edition.). Quill.
芝加哥风格引文Sowell, Thomas. A Conflict of Visions. First Quill edition. New York: Quill, 1987.
MLA引文Sowell, Thomas. A Conflict of Visions. First Quill edition. Quill, 1987.
警告：这些引文格式不一定是100％准确.