APA aipamena

Krugman, P. R., & Obstfeld, M. (2000). International economics: Theory and policy (International ed.). New York: Addison Wesley.

Chicago Style aipamena

Krugman, Paul R., và Maurice Obstfeld. International Economics: Theory and Policy. International ed. New York: Addison Wesley, 2000.

MLA aipamena

Krugman, Paul R., và Maurice Obstfeld. International Economics: Theory and Policy. International ed. New York: Addison Wesley, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.