APA (7th ed.) Zitazioa

Winters, L. A., & Wells, S. J. (1998). International economics (4th ed.). Routledge.

Chicago Style (17th ed.) Zitazioa

Winters, L. Alan, eta Sidney J. Wells. International Economics. 4th ed. London: Routledge, 1998.

MLA (9th ed.) Zitazioa

Winters, L. Alan, eta Sidney J. Wells. International Economics. 4th ed. Routledge, 1998.