APA引文

Cobham, D. (1979). Economics of international trade. Woodhead faulkner.

Chicago Edition Citation

Cobham, David. Economics of International Trade. Combridge: Woodhead faulkner, 1979.

MLA引文

Cobham, David. Economics of International Trade. Woodhead faulkner, 1979.

警告：這些引文格式不一定是100％准確.