Cita APA (7a ed.)

Cowen, T., & Tabarrok, A. (2009). Modern principles: Macroeconomics (1st printing.). Worth.

Cita Chicago Style (17a ed.)

Cowen, Tyler, y Alexander Tabarrok. Modern Principles: Macroeconomics. 1st printing. New York: Worth, 2009.

Cita MLA (9a ed.)

Cowen, Tyler, y Alexander Tabarrok. Modern Principles: Macroeconomics. 1st printing. Worth, 2009.