APA-referens (7:e uppl.)

Krugman, P. R. (2014). International Economics (8th.). Pearson.

Chicago-referens (17:e uppl.)

Krugman, Paul R. International Economics. 8th. Noida: Pearson, 2014.

MLA-referens (9:e uppl.)

Krugman, Paul R. International Economics. 8th. Pearson, 2014.