Arnold, R. A. (2007). Economics (Concise ed.). Thomson Business and Economics.
芝加哥风格引文Arnold, Roger A. Economics. Concise ed. Mason, OH: Thomson Business and Economics, 2007.
MLA引文Arnold, Roger A. Economics. Concise ed. Thomson Business and Economics, 2007.
警告：这些引文格式不一定是100％准确.