Lua APA (7ú heag.)
Krugman, P. R., & Obstfeld, M. (2006). International economics: Theory and policy (7th ed.). Addison-Wesley.
Lua i Stíl Chicago (17ú heag.)
Krugman, Paul R., agus Maurice Obstfeld. International Economics: Theory and Policy. 7th ed. Boston, MA: Addison-Wesley, 2006.
Lua MLA (9ú heag.)
Krugman, Paul R., agus Maurice Obstfeld. International Economics: Theory and Policy. 7th ed. Addison-Wesley, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.