Cita APA (7th ed.)

(2007). Principles of Macroeconomics (4th ed.). Thomson Learning.

Cita Chicago (17th ed.)

Principles of Macroeconomics. 4th ed. New Delhi: Thomson Learning, 2007.

Cita MLA (9th ed.)

Principles of Macroeconomics. 4th ed. Thomson Learning, 2007.