APA aipamena

Pugel,Thomas A. (2004). International economics (12.). McGraw Hill.

Chicago Style aipamena

Pugel,Thomas A. International Economics. 12. New York: McGraw Hill, 2004.

MLA aipamena

Pugel,Thomas A. International Economics. 12. McGraw Hill, 2004.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.