APA (7th ed.) Citation
Krugman, P. R., Obstfeld, M., & Melitz, M. J. (2018). International Economics: Theory and Policy (11th Edition.). Pearson.
Chicago Style (17th ed.) Citation
Krugman, Paul R., Maurice Obstfeld, and Marc J. Melitz. International Economics: Theory and Policy. 11th Edition. Harlow: Pearson, 2018.
MLA (9th ed.) Citation
Krugman, Paul R., et al. International Economics: Theory and Policy. 11th Edition. Pearson, 2018.
Warning: These citations may not always be 100% accurate.