Clark, J., & Veseth, M. (1987). Economics: Cost and choice. Harcourt brace.
芝加哥风格引文Clark, J.R, 与 Michael Veseth. Economics: Cost and Choice. San Diego: Harcourt brace, 1987.
MLA引文Clark, J.R, 与 Michael Veseth. Economics: Cost and Choice. Harcourt brace, 1987.
警告：这些引文格式不一定是100％准确.