McConnell, C. R., & Brue, S. L. (2002). Macroeconomics: Principles, problems, and policies (15th ed.). McGraw-Hill.

McConnell, Campbell R., and Stanley L. Brue. Macroeconomics: Principles, Problems, and Policies. 15th ed. Boston: McGraw-Hill, 2002.

McConnell, Campbell R., and Stanley L. Brue. Macroeconomics: Principles, Problems, and Policies. 15th ed. McGraw-Hill, 2002.