Cita APA (7a ed.)

Wonnacott, P., & Wonnacott, R. (1990). Economics (4th ed.). John Wiley and Sons.

Cita Chicago Style (17a ed.)

Wonnacott, Paul, y Ronald Wonnacott. Economics. 4th ed. New York: John Wiley and Sons, 1990.

Cita MLA (9a ed.)

Wonnacott, Paul, y Ronald Wonnacott. Economics. 4th ed. John Wiley and Sons, 1990.