Samuelson, P. A. (2022). Macroeconomics (20th.). McGraw Hill.
Cita Chicago (17th ed.)Samuelson, Paul A. Macroeconomics. 20th. McGraw Hill, 2022.
Cita MLA (9th ed.)Samuelson, Paul A. Macroeconomics. 20th. McGraw Hill, 2022.
Atenció: Aquestes cites poden no estar 100% correctes.