APA (7th ed.) Zitazioa

Wonnacott, P., & Wonnacott, R. J. (1990). Economics (4th.ed.). John Wiley & sons.

Chicago Style (17th ed.) Zitazioa

Wonnacott, Paul, eta Ronald J. Wonnacott. Economics. 4th.ed. New York: John Wiley & sons, 1990.

MLA (9th ed.) Zitazioa

Wonnacott, Paul, eta Ronald J. Wonnacott. Economics. 4th.ed. John Wiley & sons, 1990.