Lua APA (7ú heag.)

Krugman, P. R., & Obstfeld, M. (2003). International economics: Theory and policy (6th ed.). Pearson Education Inc..

Lua i Stíl Chicago (17ú heag.)

Krugman, Paul R., agus Maurice Obstfeld. International Economics: Theory and Policy. 6th ed. Boston ; New Delhi: Pearson Education Inc., 2003.

Lua MLA (8ú heag.)

Krugman, Paul R., agus Maurice Obstfeld. International Economics: Theory and Policy. 6th ed. Pearson Education Inc., 2003.

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