APA-viite (7. p.)

Pugel Thomas A. (2009). International Economics (13th.). Tata McGraw-Hill.

Chicago-viite (17. p.)

Pugel Thomas A. International Economics. 13th. New Delhi: Tata McGraw-Hill, 2009.

MLA-viite (9. p.)

Pugel Thomas A. International Economics. 13th. Tata McGraw-Hill, 2009.