APA引文

Siebert,Horst. (1999). The world economy. Routledge.

Chicago Edition Citation

Siebert,Horst. The World Economy. London: Routledge, 1999.

MLA引文

Siebert,Horst. The World Economy. Routledge, 1999.

警告：這些引文格式不一定是100％准確.