APA aipamena

Pugel, T. A. (2007). International Economics (13th.). Tata McGraw Hill Education (India) Private Limited.

Chicago Style aipamena

Pugel, Thomas A. International Economics. 13th. New Delhi: Tata McGraw Hill Education (India) Private Limited, 2007.

MLA aipamena

Pugel, Thomas A. International Economics. 13th. Tata McGraw Hill Education (India) Private Limited, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.