Gwartney, J. D., Stroup, R. L., Sobel, R. S., & Macpherson, D. A. (2011). Macroeconomics: Global economic watch edition (13th edition.). Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Gwartney, James D., Richard L. Stroup, Russell S. Sobel, agus David A. Macpherson. Macroeconomics: Global Economic Watch Edition. 13th edition. Mason, Ohio: Cengage Learning, 2011.
Lua MLA (9ú heag.)Gwartney, James D., et al. Macroeconomics: Global Economic Watch Edition. 13th edition. Cengage Learning, 2011.
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