APA ציטוט

Krugman, P. R., & Paul R. Krugman; Maurice Obstfeld; Marc J. Melitz. (2015). International economics: Theory and policy. Boston: Pearson.

Trích dẫn kiểu Chicago

Krugman, Paul R., và Paul R. Krugman; Maurice Obstfeld; Marc J. Melitz. International Economics: Theory and Policy. Boston: Pearson, 2015.

ציטוט MLA

Krugman, Paul R., và Paul R. Krugman; Maurice Obstfeld; Marc J. Melitz. International Economics: Theory and Policy. Boston: Pearson, 2015.