O'Sullivan, A., & Sheffrin, S. M. (2006). Economics: Principles and tools (4th ed.). Pearson/ Prentice Hall.
芝加哥风格引文O'Sullivan, Arthur, 与 Steven M. Sheffrin. Economics: Principles and Tools. 4th ed. Upper Saddle River, NJ: Pearson/ Prentice Hall, 2006.
MLA引文O'Sullivan, Arthur, 与 Steven M. Sheffrin. Economics: Principles and Tools. 4th ed. Pearson/ Prentice Hall, 2006.
警告：这些引文格式不一定是100％准确.