APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Siebert, Horst. The World Economy. 2nd ed. London [etc.]: Routledge, 2002.

MLA (9th ed.) Citation

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