APA (7th ed.) Citation

Siebert, H. (2002). The world economy (2. ed.). Routledge.

Chicago Style (17th ed.) Citation

Siebert, Horst. The World Economy. 2. ed. London [u.a.]: Routledge, 2002.

MLA (9th ed.) Citation

Siebert, Horst. The World Economy. 2. ed. Routledge, 2002.