APA Citatie

Krugman, P. R., & Obstfeld, M. (1996). International economics: Theory and policy (4th ed.). Addison Wesley.

Chicago Style citaat

Krugman, Paul R., en Maurice Obstfeld. International Economics: Theory and Policy. 4th ed. Massachusetts: Addison Wesley, 1996.

MLA citatie

Krugman, Paul R., en Maurice Obstfeld. International Economics: Theory and Policy. 4th ed. Addison Wesley, 1996.

Let op: Deze citaties zijn niet altijd 100% accuraat.