APA (7th ed.) Zitazioa

Siebert, H. (2002). The World economy. Routledge.

Chicago Style (17th ed.) Zitazioa

Siebert, Horst. The World Economy. London: Routledge, 2002.

MLA (9th ed.) Zitazioa

Siebert, Horst. The World Economy. Routledge, 2002.