Krugman, P. R., Obstfeld, M., & Melitz, M. J. (2015). International economics: Theory and policy (Global and Tenth edition.). Pearson.
Chicago-viite (17. p.)Krugman, Paul R., Maurice Obstfeld, ja Marc J. Melitz. International Economics: Theory and Policy. Global and Tenth edition. Boston: Pearson, 2015.
MLA-viite (8. p.)Krugman, Paul R., et al. International Economics: Theory and Policy. Global and Tenth edition. Pearson, 2015.
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