Cita APA (7th ed.)

Williamson, S. D. (2011). Macroeconomics (4th ed.). Addison-Wesley.

Cita Chicago (17th ed.)

Williamson, Stephen D. Macroeconomics. 4th ed. Boston: Addison-Wesley, 2011.

Cita MLA (9th ed.)

Williamson, Stephen D. Macroeconomics. 4th ed. Addison-Wesley, 2011.

Atenció: Aquestes cites poden no estar 100% correctes.