O'Sullivan, A., Sheffrin, S. M., & Perez, S. J. (2008). Economics: Principles, applications, and tools (5th ed.). Pearson Prentice Hall.
Chicago-viite (17. p.)O'Sullivan, Arthur, Steven M. Sheffrin, ja Stephen J. Perez. Economics: Principles, Applications, and Tools. 5th ed. Upper Saddle River, NJ: Pearson Prentice Hall, 2008.
MLA-viite (9. p.)O'Sullivan, Arthur, et al. Economics: Principles, Applications, and Tools. 5th ed. Pearson Prentice Hall, 2008.
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