Lua APA (7ú heag.)

Melvin, M., & Boyes, W. (2011). Principles of Macroeconomics (8th ed.). South-Western Cengage Learning.

Lua i Stíl Chicago (17ú heag.)

Melvin, Michael, agus William Boyes. Principles of Macroeconomics. 8th ed. Australia: South-Western Cengage Learning, 2011.

Lua MLA (9ú heag.)

Melvin, Michael, agus William Boyes. Principles of Macroeconomics. 8th ed. South-Western Cengage Learning, 2011.

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