APA (7th ed.) Citation

Krugman, P. R., & Obstfeld, M. (1997). International economics: Theory and policy (4 η εκδ.). Addison-Wesley.

Chicago Style (17th ed.) Citation

Krugman, Paul R., and Maurice Obstfeld. International Economics: Theory and Policy. 4 η εκδ. Massachuesetts: Addison-Wesley, 1997.

MLA (8th ed.) Citation

Krugman, Paul R., and Maurice Obstfeld. International Economics: Theory and Policy. 4 η εκδ. Addison-Wesley, 1997.