APA引文

Jantzen, T. (1964). The Operation of a free trade area. Geneva: European free trade Association.

Trích dẫn kiểu Chicago

Jantzen, Torben. The Operation of a Free Trade Area. Geneva: European free trade Association, 1964.

MLA引文

Jantzen, Torben. The Operation of a Free Trade Area. Geneva: European free trade Association, 1964.

警告：这些引文格式不一定是100％准确.