Winters, L. A., & Wells, S. J. (1998). International economics (4th ed.). Routledge.
Lua i Stíl Chicago (17ú heag.)Winters, L. Alan, agus Sidney J. Wells. International Economics. 4th ed. London: Routledge, 1998.
Lua MLA (9ú heag.)Winters, L. Alan, agus Sidney J. Wells. International Economics. 4th ed. Routledge, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.