Cita APA (7a ed.)

Barro, R. J. (1990). Macroeconomics (3th ed.). John Wiley.

Cita Chicago Style (17a ed.)

Barro, Robert J. Macroeconomics. 3th ed. New York [N.Y.] [etc.]: John Wiley, 1990.

Cita MLA (9a ed.)

Barro, Robert J. Macroeconomics. 3th ed. John Wiley, 1990.