APA-viite (7. p.)

Krugman, P. R. (2000). International economics: : theory and policy. Addison-Wesley.

Chicago-viite (17. p.)

Krugman, Paul R. International Economics: : Theory and Policy. Reading Msstt.: Addison-Wesley, 2000.

MLA-viite (9. p.)

Krugman, Paul R. International Economics: : Theory and Policy. Addison-Wesley, 2000.